Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6 into next

Pull crypto updates from Herbert Xu:
 "Here is the crypto update for 3.16:

   - Added test vectors for SHA/AES-CCM/DES-CBC/3DES-CBC.
   - Fixed a number of error-path memory leaks in tcrypt.
   - Fixed error-path memory leak in caam.
   - Removed unnecessary global mutex from mxs-dcp.
   - Added ahash walk interface that can actually be asynchronous.
   - Cleaned up caam error reporting.
   - Allow crypto_user get operation to be used by non-root users.
   - Add support for SSS module on Exynos.
   - Misc fixes"

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6: (60 commits)
  crypto: testmgr - add aead cbc des, des3_ede tests
  crypto: testmgr - Fix DMA-API warning
  crypto: cesa - tfm->__crt_alg->cra_type directly
  crypto: sahara - tfm->__crt_alg->cra_name directly
  crypto: padlock - tfm->__crt_alg->cra_name directly
  crypto: n2 - tfm->__crt_alg->cra_name directly
  crypto: dcp - tfm->__crt_alg->cra_name directly
  crypto: cesa - tfm->__crt_alg->cra_name directly
  crypto: ccp - tfm->__crt_alg->cra_name directly
  crypto: geode - Don't use tfm->__crt_alg->cra_name directly
  crypto: geode - Weed out printk() from probe()
  crypto: geode - Consistently use AES_KEYSIZE_128
  crypto: geode - Kill AES_IV_LENGTH
  crypto: geode - Kill AES_MIN_BLOCK_SIZE
  crypto: mxs-dcp - Remove global mutex
  crypto: hash - Add real ahash walk interface
  hwrng: n2-drv - Introduce the use of the managed version of kzalloc
  crypto: caam - reinitialize keys_fit_inline for decrypt and givencrypt
  crypto: s5p-sss - fix multiplatform build
  hwrng: timeriomem - remove unnecessary OOM messages
  ...

6 files changed, 58 insertions, 257 deletions

diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig
index 244759bbd7b7..836b061ced35 100644
--- a/drivers/char/hw_random/Kconfig
+++ b/drivers/char/hw_random/Kconfig
@@ -2,7 +2,7 @@
 # Hardware Random Number Generator (RNG) configuration
 #
 
-config HW_RANDOM
+menuconfig HW_RANDOM
         tristate "Hardware Random Number Generator Core support"
         default m
         ---help---
@@ -20,9 +20,11 @@ config HW_RANDOM
 
           If unsure, say Y.
 
+if HW_RANDOM
+
 config HW_RANDOM_TIMERIOMEM
         tristate "Timer IOMEM HW Random Number Generator support"
-        depends on HW_RANDOM && HAS_IOMEM
+        depends on HAS_IOMEM
         ---help---
           This driver provides kernel-side support for a generic Random
           Number Generator used by reading a 'dumb' iomem address that
@@ -36,7 +38,7 @@ config HW_RANDOM_TIMERIOMEM
 
 config HW_RANDOM_INTEL
         tristate "Intel HW Random Number Generator support"
-        depends on HW_RANDOM && (X86 || IA64) && PCI
+        depends on (X86 || IA64) && PCI
         default HW_RANDOM
         ---help---
           This driver provides kernel-side support for the Random Number
@@ -49,7 +51,7 @@ config HW_RANDOM_INTEL
 
 config HW_RANDOM_AMD
         tristate "AMD HW Random Number Generator support"
-        depends on HW_RANDOM && (X86 || PPC_MAPLE) && PCI
+        depends on (X86 || PPC_MAPLE) && PCI
         default HW_RANDOM
         ---help---
           This driver provides kernel-side support for the Random Number
@@ -62,8 +64,8 @@ config HW_RANDOM_AMD
 
 config HW_RANDOM_ATMEL
         tristate "Atmel Random Number Generator support"
-        depends on HW_RANDOM && HAVE_CLK
-        default (HW_RANDOM && ARCH_AT91)
+        depends on ARCH_AT91 && HAVE_CLK
+        default HW_RANDOM
         ---help---
           This driver provides kernel-side support for the Random Number
           Generator hardware found on Atmel AT91 devices.
@@ -75,7 +77,7 @@ config HW_RANDOM_ATMEL
 
 config HW_RANDOM_BCM63XX
         tristate "Broadcom BCM63xx Random Number Generator support"
-        depends on HW_RANDOM && BCM63XX
+        depends on BCM63XX
         default HW_RANDOM
         ---help---
           This driver provides kernel-side support for the Random Number
@@ -88,7 +90,7 @@ config HW_RANDOM_BCM63XX
 
 config HW_RANDOM_BCM2835
         tristate "Broadcom BCM2835 Random Number Generator support"
-        depends on HW_RANDOM && ARCH_BCM2835
+        depends on ARCH_BCM2835
         default HW_RANDOM
         ---help---
           This driver provides kernel-side support for the Random Number
@@ -101,7 +103,7 @@ config HW_RANDOM_BCM2835
 
 config HW_RANDOM_GEODE
         tristate "AMD Geode HW Random Number Generator support"
-        depends on HW_RANDOM && X86_32 && PCI
+        depends on X86_32 && PCI
         default HW_RANDOM
         ---help---
           This driver provides kernel-side support for the Random Number
@@ -114,7 +116,7 @@ config HW_RANDOM_GEODE
 
 config HW_RANDOM_N2RNG
         tristate "Niagara2 Random Number Generator support"
-        depends on HW_RANDOM && SPARC64
+        depends on SPARC64
         default HW_RANDOM
         ---help---
           This driver provides kernel-side support for the Random Number
@@ -127,7 +129,7 @@ config HW_RANDOM_N2RNG
 
 config HW_RANDOM_VIA
         tristate "VIA HW Random Number Generator support"
-        depends on HW_RANDOM && X86
+        depends on X86
         default HW_RANDOM
         ---help---
           This driver provides kernel-side support for the Random Number
@@ -140,7 +142,7 @@ config HW_RANDOM_VIA
 
 config HW_RANDOM_IXP4XX
         tristate "Intel IXP4xx NPU HW Pseudo-Random Number Generator support"
-        depends on HW_RANDOM && ARCH_IXP4XX
+        depends on ARCH_IXP4XX
         default HW_RANDOM
         ---help---
           This driver provides kernel-side support for the Pseudo-Random
@@ -153,7 +155,7 @@ config HW_RANDOM_IXP4XX
 
 config HW_RANDOM_OMAP
         tristate "OMAP Random Number Generator support"
-        depends on HW_RANDOM && (ARCH_OMAP16XX || ARCH_OMAP2PLUS)
+        depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
         default HW_RANDOM
         ---help---
           This driver provides kernel-side support for the Random Number
@@ -167,7 +169,7 @@ config HW_RANDOM_OMAP
 
 config HW_RANDOM_OMAP3_ROM
         tristate "OMAP3 ROM Random Number Generator support"
-        depends on HW_RANDOM && ARCH_OMAP3
+        depends on ARCH_OMAP3
         default HW_RANDOM
         ---help---
           This driver provides kernel-side support for the Random Number
@@ -180,7 +182,7 @@ config HW_RANDOM_OMAP3_ROM
 
 config HW_RANDOM_OCTEON
         tristate "Octeon Random Number Generator support"
-        depends on HW_RANDOM && CAVIUM_OCTEON_SOC
+        depends on CAVIUM_OCTEON_SOC
         default HW_RANDOM
         ---help---
           This driver provides kernel-side support for the Random Number
@@ -193,7 +195,7 @@ config HW_RANDOM_OCTEON
 
 config HW_RANDOM_PASEMI
         tristate "PA Semi HW Random Number Generator support"
-        depends on HW_RANDOM && PPC_PASEMI
+        depends on PPC_PASEMI
         default HW_RANDOM
         ---help---
           This driver provides kernel-side support for the Random Number
@@ -206,7 +208,7 @@ config HW_RANDOM_PASEMI
 
 config HW_RANDOM_VIRTIO
         tristate "VirtIO Random Number Generator support"
-        depends on HW_RANDOM && VIRTIO
+        depends on VIRTIO
         ---help---
           This driver provides kernel-side support for the virtual Random Number
           Generator hardware.
@@ -216,7 +218,7 @@ config HW_RANDOM_VIRTIO
 
 config HW_RANDOM_TX4939
         tristate "TX4939 Random Number Generator support"
-        depends on HW_RANDOM && SOC_TX4939
+        depends on SOC_TX4939
         default HW_RANDOM
         ---help---
           This driver provides kernel-side support for the Random Number
@@ -229,7 +231,8 @@ config HW_RANDOM_TX4939
 
 config HW_RANDOM_MXC_RNGA
         tristate "Freescale i.MX RNGA Random Number Generator"
-        depends on HW_RANDOM && ARCH_HAS_RNGA
+        depends on ARCH_HAS_RNGA
+        default HW_RANDOM
         ---help---
           This driver provides kernel-side support for the Random Number
           Generator hardware found on Freescale i.MX processors.
@@ -241,7 +244,8 @@ config HW_RANDOM_MXC_RNGA
 
 config HW_RANDOM_NOMADIK
         tristate "ST-Ericsson Nomadik Random Number Generator support"
-        depends on HW_RANDOM && ARCH_NOMADIK
+        depends on ARCH_NOMADIK
+        default HW_RANDOM
         ---help---
           This driver provides kernel-side support for the Random Number
           Generator hardware found on ST-Ericsson SoCs (8815 and 8500).
@@ -251,21 +255,10 @@ config HW_RANDOM_NOMADIK
 
           If unsure, say Y.
 
-config HW_RANDOM_PICOXCELL
-        tristate "Picochip picoXcell true random number generator support"
-        depends on HW_RANDOM && ARCH_PICOXCELL && PICOXCELL_PC3X3
-        ---help---
-          This driver provides kernel-side support for the Random Number
-          Generator hardware found on Picochip PC3x3 and later devices.
-
-          To compile this driver as a module, choose M here: the
-          module will be called picoxcell-rng.
-
-          If unsure, say Y.
-
 config HW_RANDOM_PPC4XX
         tristate "PowerPC 4xx generic true random number generator support"
-        depends on HW_RANDOM && PPC && 4xx
+        depends on PPC && 4xx
+        default HW_RANDOM
         ---help---
          This driver provides the kernel-side support for the TRNG hardware
          found in the security function of some PowerPC 4xx SoCs.
@@ -275,24 +268,9 @@ config HW_RANDOM_PPC4XX
 
          If unsure, say N.
 
-config UML_RANDOM
-        depends on UML
-        tristate "Hardware random number generator"
-        help
-          This option enables UML's "hardware" random number generator.  It
-          attaches itself to the host's /dev/random, supplying as much entropy
-          as the host has, rather than the small amount the UML gets from its
-          own drivers.  It registers itself as a standard hardware random number
-          generator, major 10, minor 183, and the canonical device name is
-          /dev/hwrng.
-          The way to make use of this is to install the rng-tools package
-          (check your distro, or download from
-          http://sourceforge.net/projects/gkernel/).  rngd periodically reads
-          /dev/hwrng and injects the entropy into /dev/random.
-
 config HW_RANDOM_PSERIES
         tristate "pSeries HW Random Number Generator support"
-        depends on HW_RANDOM && PPC64 && IBMVIO
+        depends on PPC64 && IBMVIO
         default HW_RANDOM
         ---help---
           This driver provides kernel-side support for the Random Number
@@ -305,7 +283,7 @@ config HW_RANDOM_PSERIES
 
 config HW_RANDOM_POWERNV
         tristate "PowerNV Random Number Generator support"
-        depends on HW_RANDOM && PPC_POWERNV
+        depends on PPC_POWERNV
         default HW_RANDOM
         ---help---
           This is the driver for Random Number Generator hardware found
@@ -318,7 +296,8 @@ config HW_RANDOM_POWERNV
 
 config HW_RANDOM_EXYNOS
         tristate "EXYNOS HW random number generator support"
-        depends on HW_RANDOM && HAS_IOMEM && HAVE_CLK
+        depends on ARCH_EXYNOS
+        default HW_RANDOM
         ---help---
           This driver provides kernel-side support for the Random Number
           Generator hardware found on EXYNOS SOCs.
@@ -330,7 +309,7 @@ config HW_RANDOM_EXYNOS
 
 config HW_RANDOM_TPM
         tristate "TPM HW Random Number Generator support"
-        depends on HW_RANDOM && TCG_TPM
+        depends on TCG_TPM
         default HW_RANDOM
         ---help---
           This driver provides kernel-side support for the Random Number
@@ -344,6 +323,7 @@ config HW_RANDOM_TPM
 config HW_RANDOM_MSM
         tristate "Qualcomm SoCs Random Number Generator support"
         depends on HW_RANDOM && ARCH_QCOM
+        default HW_RANDOM
         ---help---
           This driver provides kernel-side support for the Random Number
           Generator hardware found on Qualcomm SoCs.
@@ -352,3 +332,20 @@ config HW_RANDOM_MSM
           module will be called msm-rng.
 
           If unsure, say Y.
+
+endif # HW_RANDOM
+
+config UML_RANDOM
+        depends on UML
+        tristate "Hardware random number generator"
+        help
+          This option enables UML's "hardware" random number generator.  It
+          attaches itself to the host's /dev/random, supplying as much entropy
+          as the host has, rather than the small amount the UML gets from its
+          own drivers.  It registers itself as a standard hardware random number
+          generator, major 10, minor 183, and the canonical device name is
+          /dev/hwrng.
+          The way to make use of this is to install the rng-tools package
+          (check your distro, or download from
+          http://sourceforge.net/projects/gkernel/).  rngd periodically reads
+          /dev/hwrng and injects the entropy into /dev/random.
diff --git a/drivers/char/hw_random/Makefile b/drivers/char/hw_random/Makefile
index 3ae7755a52e7..199ed283e149 100644
--- a/drivers/char/hw_random/Makefile
+++ b/drivers/char/hw_random/Makefile
@@ -22,7 +22,6 @@ obj-$(CONFIG_HW_RANDOM_TX4939) += tx4939-rng.o
 obj-$(CONFIG_HW_RANDOM_MXC_RNGA) += mxc-rnga.o
 obj-$(CONFIG_HW_RANDOM_OCTEON) += octeon-rng.o
 obj-$(CONFIG_HW_RANDOM_NOMADIK) += nomadik-rng.o
-obj-$(CONFIG_HW_RANDOM_PICOXCELL) += picoxcell-rng.o
 obj-$(CONFIG_HW_RANDOM_PPC4XX) += ppc4xx-rng.o
 obj-$(CONFIG_HW_RANDOM_PSERIES) += pseries-rng.o
 obj-$(CONFIG_HW_RANDOM_POWERNV) += powernv-rng.o
diff --git a/drivers/char/hw_random/n2-drv.c b/drivers/char/hw_random/n2-drv.c
index 432232eefe05..292a5889f675 100644
--- a/drivers/char/hw_random/n2-drv.c
+++ b/drivers/char/hw_random/n2-drv.c
@@ -632,7 +632,7 @@ static int n2rng_probe(struct platform_device *op)
         multi_capable = (match->data != NULL);
 
         n2rng_driver_version();
-        np = kzalloc(sizeof(*np), GFP_KERNEL);
+        np = devm_kzalloc(&op->dev, sizeof(*np), GFP_KERNEL);
         if (!np)
                 goto out;
         np->op = op;
@@ -653,7 +653,7 @@ static int n2rng_probe(struct platform_device *op)
                                          &np->hvapi_minor)) {
                         dev_err(&op->dev, "Cannot register suitable "
                                 "HVAPI version.\n");
-                        goto out_free;
+                        goto out;
                 }
         }
 
@@ -676,15 +676,16 @@ static int n2rng_probe(struct platform_device *op)
         dev_info(&op->dev, "Registered RNG HVAPI major %lu minor %lu\n",
                  np->hvapi_major, np->hvapi_minor);
 
-        np->units = kzalloc(sizeof(struct n2rng_unit) * np->num_units,
-                            GFP_KERNEL);
+        np->units = devm_kzalloc(&op->dev,
+                                 sizeof(struct n2rng_unit) * np->num_units,
+                                 GFP_KERNEL);
         err = -ENOMEM;
         if (!np->units)
                 goto out_hvapi_unregister;
 
         err = n2rng_init_control(np);
         if (err)
-                goto out_free_units;
+                goto out_hvapi_unregister;
 
         dev_info(&op->dev, "Found %s RNG, units: %d\n",
                  ((np->flags & N2RNG_FLAG_MULTI) ?
@@ -697,7 +698,7 @@ static int n2rng_probe(struct platform_device *op)
 
         err = hwrng_register(&np->hwrng);
         if (err)
-                goto out_free_units;
+                goto out_hvapi_unregister;
 
         platform_set_drvdata(op, np);
 
@@ -705,15 +706,9 @@ static int n2rng_probe(struct platform_device *op)
 
         return 0;
 
-out_free_units:
-        kfree(np->units);
-        np->units = NULL;
-
 out_hvapi_unregister:
         sun4v_hvapi_unregister(HV_GRP_RNG);
 
-out_free:
-        kfree(np);
 out:
         return err;
 }
@@ -730,11 +725,6 @@ static int n2rng_remove(struct platform_device *op)
 
         sun4v_hvapi_unregister(HV_GRP_RNG);
 
-        kfree(np->units);
-        np->units = NULL;
-
-        kfree(np);
-
         return 0;
 }
 
diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c
index 9b89ff4881de..f66ea258382f 100644
--- a/drivers/char/hw_random/omap-rng.c
+++ b/drivers/char/hw_random/omap-rng.c
@@ -369,10 +369,8 @@ static int omap_rng_probe(struct platform_device *pdev)
         int ret;
 
         priv = devm_kzalloc(dev, sizeof(struct omap_rng_dev), GFP_KERNEL);
-        if (!priv) {
-                dev_err(&pdev->dev, "could not allocate memory\n");
+        if (!priv)
                 return -ENOMEM;
-        };
 
         omap_rng_ops.priv = (unsigned long)priv;
         platform_set_drvdata(pdev, priv);
diff --git a/drivers/char/hw_random/picoxcell-rng.c b/drivers/char/hw_random/picoxcell-rng.c
deleted file mode 100644
index eab5448ad56f..000000000000
--- a/drivers/char/hw_random/picoxcell-rng.c
+++ /dev/null
@@ -1,181 +0,0 @@
-/*
- * Copyright (c) 2010-2011 Picochip Ltd., Jamie Iles
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * All enquiries to support@picochip.com
- */
-#include <linux/clk.h>
-#include <linux/delay.h>
-#include <linux/err.h>
-#include <linux/hw_random.h>
-#include <linux/io.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-
-#define DATA_REG_OFFSET         0x0200
-#define CSR_REG_OFFSET          0x0278
-#define CSR_OUT_EMPTY_MASK      (1 << 24)
-#define CSR_FAULT_MASK          (1 << 1)
-#define TRNG_BLOCK_RESET_MASK   (1 << 0)
-#define TAI_REG_OFFSET          0x0380
-
-/*
- * The maximum amount of time in microseconds to spend waiting for data if the
- * core wants us to wait.  The TRNG should generate 32 bits every 320ns so a
- * timeout of 20us seems reasonable.  The TRNG does builtin tests of the data
- * for randomness so we can't always assume there is data present.
- */
-#define PICO_TRNG_TIMEOUT               20
-
-static void __iomem *rng_base;
-static struct clk *rng_clk;
-static struct device *rng_dev;
-
-static inline u32 picoxcell_trng_read_csr(void)
-{
-        return __raw_readl(rng_base + CSR_REG_OFFSET);
-}
-
-static inline bool picoxcell_trng_is_empty(void)
-{
-        return picoxcell_trng_read_csr() & CSR_OUT_EMPTY_MASK;
-}
-
-/*
- * Take the random number generator out of reset and make sure the interrupts
- * are masked. We shouldn't need to get large amounts of random bytes so just
- * poll the status register. The hardware generates 32 bits every 320ns so we
- * shouldn't have to wait long enough to warrant waiting for an IRQ.
- */
-static void picoxcell_trng_start(void)
-{
-        __raw_writel(0, rng_base + TAI_REG_OFFSET);
-        __raw_writel(0, rng_base + CSR_REG_OFFSET);
-}
-
-static void picoxcell_trng_reset(void)
-{
-        __raw_writel(TRNG_BLOCK_RESET_MASK, rng_base + CSR_REG_OFFSET);
-        __raw_writel(TRNG_BLOCK_RESET_MASK, rng_base + TAI_REG_OFFSET);
-        picoxcell_trng_start();
-}
-
-/*
- * Get some random data from the random number generator. The hw_random core
- * layer provides us with locking.
- */
-static int picoxcell_trng_read(struct hwrng *rng, void *buf, size_t max,
-                               bool wait)
-{
-        int i;
-
-        /* Wait for some data to become available. */
-        for (i = 0; i < PICO_TRNG_TIMEOUT && picoxcell_trng_is_empty(); ++i) {
-                if (!wait)
-                        return 0;
-
-                udelay(1);
-        }
-
-        if (picoxcell_trng_read_csr() & CSR_FAULT_MASK) {
-                dev_err(rng_dev, "fault detected, resetting TRNG\n");
-                picoxcell_trng_reset();
-                return -EIO;
-        }
-
-        if (i == PICO_TRNG_TIMEOUT)
-                return 0;
-
-        *(u32 *)buf = __raw_readl(rng_base + DATA_REG_OFFSET);
-        return sizeof(u32);
-}
-
-static struct hwrng picoxcell_trng = {
-        .name           = "picoxcell",
-        .read           = picoxcell_trng_read,
-};
-
-static int picoxcell_trng_probe(struct platform_device *pdev)
-{
-        int ret;
-        struct resource *mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-
-        rng_base = devm_ioremap_resource(&pdev->dev, mem);
-        if (IS_ERR(rng_base))
-                return PTR_ERR(rng_base);
-
-        rng_clk = devm_clk_get(&pdev->dev, NULL);
-        if (IS_ERR(rng_clk)) {
-                dev_warn(&pdev->dev, "no clk\n");
-                return PTR_ERR(rng_clk);
-        }
-
-        ret = clk_enable(rng_clk);
-        if (ret) {
-                dev_warn(&pdev->dev, "unable to enable clk\n");
-                return ret;
-        }
-
-        picoxcell_trng_start();
-        ret = hwrng_register(&picoxcell_trng);
-        if (ret)
-                goto err_register;
-
-        rng_dev = &pdev->dev;
-        dev_info(&pdev->dev, "pixoxcell random number generator active\n");
-
-        return 0;
-
-err_register:
-        clk_disable(rng_clk);
-        return ret;
-}
-
-static int picoxcell_trng_remove(struct platform_device *pdev)
-{
-        hwrng_unregister(&picoxcell_trng);
-        clk_disable(rng_clk);
-
-        return 0;
-}
-
-#ifdef CONFIG_PM
-static int picoxcell_trng_suspend(struct device *dev)
-{
-        clk_disable(rng_clk);
-
-        return 0;
-}
-
-static int picoxcell_trng_resume(struct device *dev)
-{
-        return clk_enable(rng_clk);
-}
-
-static const struct dev_pm_ops picoxcell_trng_pm_ops = {
-        .suspend        = picoxcell_trng_suspend,
-        .resume         = picoxcell_trng_resume,
-};
-#endif /* CONFIG_PM */
-
-static struct platform_driver picoxcell_trng_driver = {
-        .probe          = picoxcell_trng_probe,
-        .remove         = picoxcell_trng_remove,
-        .driver         = {
-                .name   = "picoxcell-trng",
-                .owner  = THIS_MODULE,
-#ifdef CONFIG_PM
-                .pm     = &picoxcell_trng_pm_ops,
-#endif /* CONFIG_PM */
-        },
-};
-
-module_platform_driver(picoxcell_trng_driver);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Jamie Iles");
-MODULE_DESCRIPTION("Picochip picoXcell TRNG driver");
diff --git a/drivers/char/hw_random/timeriomem-rng.c b/drivers/char/hw_random/timeriomem-rng.c
index 439ff8b28c43..b6ab9ac3f34d 100644
--- a/drivers/char/hw_random/timeriomem-rng.c
+++ b/drivers/char/hw_random/timeriomem-rng.c
@@ -120,10 +120,8 @@ static int timeriomem_rng_probe(struct platform_device *pdev)
         /* Allocate memory for the device structure (and zero it) */
         priv = devm_kzalloc(&pdev->dev,
                         sizeof(struct timeriomem_rng_private_data), GFP_KERNEL);
-        if (!priv) {
-                dev_err(&pdev->dev, "failed to allocate device structure.\n");
+        if (!priv)
                 return -ENOMEM;
-        }
 
         platform_set_drvdata(pdev, priv);