17 files changed, 49 insertions, 58 deletions

diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 0f82098c9bfe..cd22d821bf74 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -562,21 +562,21 @@ ENDPROC(__und_usr)
         @ Fall-through from Thumb-2 __und_usr
         @
 #ifdef CONFIG_NEON
+        get_thread_info r10                     @ get current thread
         adr     r6, .LCneon_thumb_opcodes
         b       2f
 #endif
 call_fpe:
+        get_thread_info r10                     @ get current thread
 #ifdef CONFIG_NEON
         adr     r6, .LCneon_arm_opcodes
-2:
-        ldr     r7, [r6], #4                    @ mask value
-        cmp     r7, #0                          @ end mask?
-        beq     1f
-        and     r8, r0, r7
+2:      ldr     r5, [r6], #4                    @ mask value
         ldr     r7, [r6], #4                    @ opcode bits matching in mask
+        cmp     r5, #0                          @ end mask?
+        beq     1f
+        and     r8, r0, r5
         cmp     r8, r7                          @ NEON instruction?
         bne     2b
-        get_thread_info r10
         mov     r7, #1
         strb    r7, [r10, #TI_USED_CP + 10]     @ mark CP#10 as used
         strb    r7, [r10, #TI_USED_CP + 11]     @ mark CP#11 as used
@@ -586,7 +586,6 @@ call_fpe:
         tst     r0, #0x08000000                 @ only CDP/CPRT/LDC/STC have bit 27
         tstne   r0, #0x04000000                 @ bit 26 set on both ARM and Thumb-2
         moveq   pc, lr
-        get_thread_info r10                     @ get current thread
         and     r8, r0, #0x00000f00             @ mask out CP number
  THUMB( lsr     r8, r8, #8              )
         mov     r7, #1
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 047d3e40e470..cbd0f51937cc 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -459,15 +459,16 @@ unsigned long arch_randomize_brk(struct mm_struct *mm)
  * atomic helpers and the signal restart code. Insert it into the
  * gate_vma so that it is visible through ptrace and /proc/<pid>/mem.
  */
-static struct vm_area_struct gate_vma;
+static struct vm_area_struct gate_vma = {
+        .vm_start       = 0xffff0000,
+        .vm_end         = 0xffff0000 + PAGE_SIZE,
+        .vm_flags       = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC,
+        .vm_mm          = &init_mm,
+};
 
 static int __init gate_vma_init(void)
 {
-        gate_vma.vm_start       = 0xffff0000;
-        gate_vma.vm_end         = 0xffff0000 + PAGE_SIZE;
-        gate_vma.vm_page_prot   = PAGE_READONLY_EXEC;
-        gate_vma.vm_flags       = VM_READ | VM_EXEC |
-                                  VM_MAYREAD | VM_MAYEXEC;
+        gate_vma.vm_page_prot = PAGE_READONLY_EXEC;
         return 0;
 }
 arch_initcall(gate_vma_init);
diff --git a/arch/arm/mach-integrator/integrator_ap.c b/arch/arm/mach-integrator/integrator_ap.c
index ea961445e0e9..b23c8e4f28e8 100644
--- a/arch/arm/mach-integrator/integrator_ap.c
+++ b/arch/arm/mach-integrator/integrator_ap.c
@@ -536,16 +536,14 @@ static void __init ap_init_of(void)
                                            'A' + (ap_sc_id & 0x0f));
 
         soc_dev = soc_device_register(soc_dev_attr);
-        if (IS_ERR_OR_NULL(soc_dev)) {
+        if (IS_ERR(soc_dev)) {
                 kfree(soc_dev_attr->revision);
                 kfree(soc_dev_attr);
                 return;
         }
 
         parent = soc_device_to_device(soc_dev);
-
-        if (!IS_ERR_OR_NULL(parent))
-                integrator_init_sysfs(parent, ap_sc_id);
+        integrator_init_sysfs(parent, ap_sc_id);
 
         of_platform_populate(root, of_default_bus_match_table,
                         ap_auxdata_lookup, parent);
diff --git a/arch/arm/mach-integrator/integrator_cp.c b/arch/arm/mach-integrator/integrator_cp.c
index 2b0db82a5381..da1091be0887 100644
--- a/arch/arm/mach-integrator/integrator_cp.c
+++ b/arch/arm/mach-integrator/integrator_cp.c
@@ -360,17 +360,14 @@ static void __init intcp_init_of(void)
                                            'A' + (intcp_sc_id & 0x0f));
 
         soc_dev = soc_device_register(soc_dev_attr);
-        if (IS_ERR_OR_NULL(soc_dev)) {
+        if (IS_ERR(soc_dev)) {
                 kfree(soc_dev_attr->revision);
                 kfree(soc_dev_attr);
                 return;
         }
 
         parent = soc_device_to_device(soc_dev);
-
-        if (!IS_ERR_OR_NULL(parent))
-                integrator_init_sysfs(parent, intcp_sc_id);
-
+        integrator_init_sysfs(parent, intcp_sc_id);
         of_platform_populate(root, of_default_bus_match_table,
                         intcp_auxdata_lookup, parent);
 }
diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index c3558f93d42c..6c949bc86256 100644
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -479,7 +479,7 @@ static int __init beagle_opp_init(void)
 
         /* Initialize the omap3 opp table if not already created. */
         r = omap3_opp_init();
-        if (IS_ERR_VALUE(r) && (r != -EEXIST)) {
+        if (r < 0 && (r != -EEXIST)) {
                 pr_err("%s: opp default init failed\n", __func__);
                 return r;
         }
diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index e4ec3a69ee2e..2191f25ad21b 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -596,7 +596,7 @@ int __init omap2_clk_switch_mpurate_at_boot(const char *mpurate_ck_name)
                 return -ENOENT;
 
         r = clk_set_rate(mpurate_ck, mpurate);
-        if (IS_ERR_VALUE(r)) {
+        if (r < 0) {
                 WARN(1, "clock: %s: unable to set MPU rate to %d: %d\n",
                      mpurate_ck_name, mpurate, r);
                 clk_put(mpurate_ck);
diff --git a/arch/arm/mach-omap2/gpmc-onenand.c b/arch/arm/mach-omap2/gpmc-onenand.c
index fadd87435cd0..0d75889c0a6f 100644
--- a/arch/arm/mach-omap2/gpmc-onenand.c
+++ b/arch/arm/mach-omap2/gpmc-onenand.c
@@ -303,7 +303,7 @@ static int omap2_onenand_setup_async(void __iomem *onenand_base)
         t = omap2_onenand_calc_async_timings();
 
         ret = gpmc_set_async_mode(gpmc_onenand_data->cs, &t);
-        if (IS_ERR_VALUE(ret))
+        if (ret < 0)
                 return ret;
 
         omap2_onenand_set_async_mode(onenand_base);
@@ -325,7 +325,7 @@ static int omap2_onenand_setup_sync(void __iomem *onenand_base, int *freq_ptr)
         t = omap2_onenand_calc_sync_timings(gpmc_onenand_data, freq);
 
         ret = gpmc_set_sync_mode(gpmc_onenand_data->cs, &t);
-        if (IS_ERR_VALUE(ret))
+        if (ret < 0)
                 return ret;
 
         set_onenand_cfg(onenand_base);
diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
index 410e1bac7815..6de31739b45c 100644
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -716,7 +716,7 @@ static int gpmc_setup_irq(void)
                 return -EINVAL;
 
         gpmc_irq_start = irq_alloc_descs(-1, 0, GPMC_NR_IRQ, 0);
-        if (IS_ERR_VALUE(gpmc_irq_start)) {
+        if (gpmc_irq_start < 0) {
                 pr_err("irq_alloc_descs failed\n");
                 return gpmc_irq_start;
         }
@@ -801,7 +801,7 @@ static int gpmc_mem_init(void)
                         continue;
                 gpmc_cs_get_memconf(cs, &base, &size);
                 rc = gpmc_cs_insert_mem(cs, base, size);
-                if (IS_ERR_VALUE(rc)) {
+                if (rc < 0) {
                         while (--cs >= 0)
                                 if (gpmc_cs_mem_enabled(cs))
                                         gpmc_cs_delete_mem(cs);
@@ -1370,14 +1370,14 @@ static int gpmc_probe(struct platform_device *pdev)
                  GPMC_REVISION_MINOR(l));
 
         rc = gpmc_mem_init();
-        if (IS_ERR_VALUE(rc)) {
+        if (rc < 0) {
                 clk_disable_unprepare(gpmc_l3_clk);
                 clk_put(gpmc_l3_clk);
                 dev_err(gpmc_dev, "failed to reserve memory\n");
                 return rc;
         }
 
-        if (IS_ERR_VALUE(gpmc_setup_irq()))
+        if (gpmc_setup_irq() < 0)
                 dev_warn(gpmc_dev, "gpmc_setup_irq failed\n");
 
         /* Now the GPMC is initialised, unreserve the chip-selects */
diff --git a/arch/arm/mach-omap2/omap_device.c b/arch/arm/mach-omap2/omap_device.c
index 381be7ac0c17..eeea4fa28fbc 100644
--- a/arch/arm/mach-omap2/omap_device.c
+++ b/arch/arm/mach-omap2/omap_device.c
@@ -131,7 +131,7 @@ static int omap_device_build_from_dt(struct platform_device *pdev)
         int oh_cnt, i, ret = 0;
 
         oh_cnt = of_property_count_strings(node, "ti,hwmods");
-        if (!oh_cnt || IS_ERR_VALUE(oh_cnt)) {
+        if (oh_cnt <= 0) {
                 dev_dbg(&pdev->dev, "No 'hwmods' to build omap_device\n");
                 return -ENODEV;
         }
@@ -815,20 +815,17 @@ struct device *omap_device_get_by_hwmod_name(const char *oh_name)
         }
 
         oh = omap_hwmod_lookup(oh_name);
-        if (IS_ERR_OR_NULL(oh)) {
+        if (!oh) {
                 WARN(1, "%s: no hwmod for %s\n", __func__,
                         oh_name);
-                return ERR_PTR(oh ? PTR_ERR(oh) : -ENODEV);
+                return ERR_PTR(-ENODEV);
         }
-        if (IS_ERR_OR_NULL(oh->od)) {
+        if (!oh->od) {
                 WARN(1, "%s: no omap_device for %s\n", __func__,
                         oh_name);
-                return ERR_PTR(oh->od ? PTR_ERR(oh->od) : -ENODEV);
+                return ERR_PTR(-ENODEV);
         }
 
-        if (IS_ERR_OR_NULL(oh->od->pdev))
-                return ERR_PTR(oh->od->pdev ? PTR_ERR(oh->od->pdev) : -ENODEV);
-
         return &oh->od->pdev->dev;
 }
 
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index e5cafed8ef25..2520d46c8508 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -1659,7 +1659,7 @@ static int _deassert_hardreset(struct omap_hwmod *oh, const char *name)
                 return -ENOSYS;
 
         ret = _lookup_hardreset(oh, name, &ohri);
-        if (IS_ERR_VALUE(ret))
+        if (ret < 0)
                 return ret;
 
         if (oh->clkdm) {
@@ -2409,7 +2409,7 @@ static int __init _init(struct omap_hwmod *oh, void *data)
         _init_mpu_rt_base(oh, NULL);
 
         r = _init_clocks(oh, NULL);
-        if (IS_ERR_VALUE(r)) {
+        if (r < 0) {
                 WARN(1, "omap_hwmod: %s: couldn't init clocks\n", oh->name);
                 return -EINVAL;
         }
diff --git a/arch/arm/mach-omap2/pm-debug.c b/arch/arm/mach-omap2/pm-debug.c
index 1edd000a8143..0b339861d751 100644
--- a/arch/arm/mach-omap2/pm-debug.c
+++ b/arch/arm/mach-omap2/pm-debug.c
@@ -217,7 +217,7 @@ static int __init pwrdms_setup(struct powerdomain *pwrdm, void *dir)
                 return 0;
 
         d = debugfs_create_dir(pwrdm->name, (struct dentry *)dir);
-        if (!(IS_ERR_OR_NULL(d)))
+        if (d)
                 (void) debugfs_create_file("suspend", S_IRUGO|S_IWUSR, d,
                         (void *)pwrdm, &pwrdm_suspend_fops);
 
@@ -261,8 +261,8 @@ static int __init pm_dbg_init(void)
                 return 0;
 
         d = debugfs_create_dir("pm_debug", NULL);
-        if (IS_ERR_OR_NULL(d))
-                return PTR_ERR(d);
+        if (!d)
+                return -EINVAL;
 
         (void) debugfs_create_file("count", S_IRUGO,
                 d, (void *)DEBUG_FILE_COUNTERS, &debug_fops);
diff --git a/arch/arm/mach-omap2/powerdomain.c b/arch/arm/mach-omap2/powerdomain.c
index 89cad4a605dd..86babd740d41 100644
--- a/arch/arm/mach-omap2/powerdomain.c
+++ b/arch/arm/mach-omap2/powerdomain.c
@@ -1180,7 +1180,7 @@ bool pwrdm_can_ever_lose_context(struct powerdomain *pwrdm)
 {
         int i;
 
-        if (IS_ERR_OR_NULL(pwrdm)) {
+        if (!pwrdm) {
                 pr_debug("powerdomain: %s: invalid powerdomain pointer\n",
                          __func__);
                 return 1;
diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c
index 773733fccd83..06cbb49cc976 100644
--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -288,7 +288,7 @@ static int __init omap_dm_timer_init_one(struct omap_dm_timer *timer,
                         r = -EINVAL;
                 } else {
                         r = clk_set_parent(timer->fclk, src);
-                        if (IS_ERR_VALUE(r))
+                        if (r < 0)
                                 pr_warn("%s: %s cannot set source\n",
                                         __func__, oh->name);
                         clk_put(src);
diff --git a/arch/arm/mach-tegra/board-harmony-pcie.c b/arch/arm/mach-tegra/board-harmony-pcie.c
index 3cdc1bb8254c..6d29e6a39540 100644
--- a/arch/arm/mach-tegra/board-harmony-pcie.c
+++ b/arch/arm/mach-tegra/board-harmony-pcie.c
@@ -56,9 +56,9 @@ int __init harmony_pcie_init(void)
         gpio_direction_output(en_vdd_1v05, 1);
 
         regulator = regulator_get(NULL, "vdd_ldo0,vddio_pex_clk");
-        if (IS_ERR_OR_NULL(regulator)) {
-                pr_err("%s: regulator_get failed: %d\n", __func__,
-                       (int)PTR_ERR(regulator));
+        if (IS_ERR(regulator)) {
+                err = PTR_ERR(regulator);
+                pr_err("%s: regulator_get failed: %d\n", __func__, err);
                 goto err_reg;
         }
 
diff --git a/arch/arm/mach-tegra/tegra2_emc.c b/arch/arm/mach-tegra/tegra2_emc.c
index ce7ce42a1ac9..9e8bdfa2b369 100644
--- a/arch/arm/mach-tegra/tegra2_emc.c
+++ b/arch/arm/mach-tegra/tegra2_emc.c
@@ -276,7 +276,7 @@ static struct tegra_emc_pdata *tegra_emc_fill_pdata(struct platform_device *pdev
         int i;
 
         WARN_ON(pdev->dev.platform_data);
-        BUG_ON(IS_ERR_OR_NULL(c));
+        BUG_ON(IS_ERR(c));
 
         pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
         pdata->tables = devm_kzalloc(&pdev->dev, sizeof(*pdata->tables),
diff --git a/arch/arm/mach-ux500/cpu.c b/arch/arm/mach-ux500/cpu.c
index 537870d3fea8..002da9a369d5 100644
--- a/arch/arm/mach-ux500/cpu.c
+++ b/arch/arm/mach-ux500/cpu.c
@@ -140,14 +140,13 @@ struct device * __init ux500_soc_device_init(const char *soc_id)
         soc_info_populate(soc_dev_attr, soc_id);
 
         soc_dev = soc_device_register(soc_dev_attr);
-        if (IS_ERR_OR_NULL(soc_dev)) {
+        if (IS_ERR(soc_dev)) {
                 kfree(soc_dev_attr);
                 return NULL;
         }
 
         parent = soc_device_to_device(soc_dev);
-        if (!IS_ERR_OR_NULL(parent))
-                device_create_file(parent, &ux500_soc_attr);
+        device_create_file(parent, &ux500_soc_attr);
 
         return parent;
 }
diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c
index a0daa2fb5de6..e6dbc8dbe6a6 100644
--- a/arch/arm/plat-omap/dmtimer.c
+++ b/arch/arm/plat-omap/dmtimer.c
@@ -140,8 +140,7 @@ static int omap_dm_timer_prepare(struct omap_dm_timer *timer)
          */
         if (!(timer->capability & OMAP_TIMER_NEEDS_RESET)) {
                 timer->fclk = clk_get(&timer->pdev->dev, "fck");
-                if (WARN_ON_ONCE(IS_ERR_OR_NULL(timer->fclk))) {
-                        timer->fclk = NULL;
+                if (WARN_ON_ONCE(IS_ERR(timer->fclk))) {
                         dev_err(&timer->pdev->dev, ": No fclk handle.\n");
                         return -EINVAL;
                 }
@@ -373,7 +372,7 @@ EXPORT_SYMBOL_GPL(omap_dm_timer_modify_idlect_mask);
 
 struct clk *omap_dm_timer_get_fclk(struct omap_dm_timer *timer)
 {
-        if (timer)
+        if (timer && !IS_ERR(timer->fclk))
                 return timer->fclk;
         return NULL;
 }
@@ -482,7 +481,7 @@ int omap_dm_timer_set_source(struct omap_dm_timer *timer, int source)
         if (pdata && pdata->set_timer_src)
                 return pdata->set_timer_src(timer->pdev, source);
 
-        if (!timer->fclk)
+        if (IS_ERR(timer->fclk))
                 return -EINVAL;
 
         switch (source) {
@@ -500,13 +499,13 @@ int omap_dm_timer_set_source(struct omap_dm_timer *timer, int source)
         }
 
         parent = clk_get(&timer->pdev->dev, parent_name);
-        if (IS_ERR_OR_NULL(parent)) {
+        if (IS_ERR(parent)) {
                 pr_err("%s: %s not found\n", __func__, parent_name);
                 return -EINVAL;
         }
 
         ret = clk_set_parent(timer->fclk, parent);
-        if (IS_ERR_VALUE(ret))
+        if (ret < 0)
                 pr_err("%s: failed to set %s as parent\n", __func__,
                         parent_name);
 
@@ -808,6 +807,7 @@ static int omap_dm_timer_probe(struct platform_device *pdev)
                 return  -ENOMEM;
         }
 
+        timer->fclk = ERR_PTR(-ENODEV);
         timer->io_base = devm_ioremap_resource(dev, mem);
         if (IS_ERR(timer->io_base))
                 return PTR_ERR(timer->io_base);