ARM: Orion: fix driver probe error handling with respect to clk

The clk patches added code to get and enable clocks in the
respective driver probe functions.  If the probe function failed
for some reason after enabling the clock, the clock was not
disabled again in many cases.

Signed-off-by: Simon Baatz <gmbnomis@gmail.com>
Signed-off-by: Andrew Lumm <andrew@lunn.ch>

5 files changed, 22 insertions, 0 deletions

diff --git a/drivers/crypto/mv_cesa.c b/drivers/crypto/mv_cesa.c
index 1cc6b3f3e262..a4faa893199c 100644
--- a/drivers/crypto/mv_cesa.c
+++ b/drivers/crypto/mv_cesa.c
@@ -1098,6 +1098,10 @@ err_unreg_ecb:
         crypto_unregister_alg(&mv_aes_alg_ecb);
 err_irq:
         free_irq(irq, cp);
+        if (!IS_ERR(cp->clk)) {
+                clk_disable_unprepare(cp->clk);
+                clk_put(cp->clk);
+        }
 err_thread:
         kthread_stop(cp->queue_th);
 err_unmap_sram:
diff --git a/drivers/mmc/host/mvsdio.c b/drivers/mmc/host/mvsdio.c
index 3b9136c1a475..a61cb5fca22d 100644
--- a/drivers/mmc/host/mvsdio.c
+++ b/drivers/mmc/host/mvsdio.c
@@ -839,6 +839,10 @@ out:
         if (r)
                 release_resource(r);
         if (mmc)
+                if (!IS_ERR_OR_NULL(host->clk)) {
+                        clk_disable_unprepare(host->clk);
+                        clk_put(host->clk);
+                }
                 mmc_free_host(mmc);
 
         return ret;
diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c
index 513dc88a05ca..9b8fd3d77168 100644
--- a/drivers/mtd/nand/orion_nand.c
+++ b/drivers/mtd/nand/orion_nand.c
@@ -183,6 +183,10 @@ static int __init orion_nand_probe(struct platform_device *pdev)
         return 0;
 
 no_dev:
+        if (!IS_ERR(clk)) {
+                clk_disable_unprepare(clk);
+                clk_put(clk);
+        }
         platform_set_drvdata(pdev, NULL);
         iounmap(io_base);
 no_res:
diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
index f0f06b2bc28b..4fbba57b8ff4 100644
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -2983,6 +2983,12 @@ static int mv643xx_eth_probe(struct platform_device *pdev)
         return 0;
 
 out:
+#if defined(CONFIG_HAVE_CLK)
+        if (!IS_ERR(mp->clk)) {
+                clk_disable_unprepare(mp->clk);
+                clk_put(mp->clk);
+        }
+#endif
         free_netdev(dev);
 
         return err;
diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c
index 82de1073aa52..c6903e3af29c 100644
--- a/drivers/usb/host/ehci-orion.c
+++ b/drivers/usb/host/ehci-orion.c
@@ -298,6 +298,10 @@ static int __devinit ehci_orion_drv_probe(struct platform_device *pdev)
 err4:
         usb_put_hcd(hcd);
 err3:
+        if (!IS_ERR(clk)) {
+                clk_disable_unprepare(clk);
+                clk_put(clk);
+        }
         iounmap(regs);
 err2:
         release_mem_region(res->start, resource_size(res));