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Subject[PATCH 3/6] mtd: nand: lpc32xx_slc: Handle return value of clk_prepare_enable.
Date
clk_prepare_enable() can fail here and we must check its return value.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
drivers/mtd/nand/lpc32xx_slc.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/nand/lpc32xx_slc.c b/drivers/mtd/nand/lpc32xx_slc.c
index a0669a3..80c2829 100644
--- a/drivers/mtd/nand/lpc32xx_slc.c
+++ b/drivers/mtd/nand/lpc32xx_slc.c
@@ -840,7 +840,9 @@ static int lpc32xx_nand_probe(struct platform_device *pdev)
res = -ENOENT;
goto err_exit1;
}
- clk_prepare_enable(host->clk);
+ res = clk_prepare_enable(host->clk);
+ if (res)
+ goto err_exit1;

/* Set NAND IO addresses and command/ready functions */
chip->IO_ADDR_R = SLC_DATA(host->io_base);
@@ -972,9 +974,12 @@ static int lpc32xx_nand_remove(struct platform_device *pdev)
static int lpc32xx_nand_resume(struct platform_device *pdev)
{
struct lpc32xx_nand_host *host = platform_get_drvdata(pdev);
+ int ret;

/* Re-enable NAND clock */
- clk_prepare_enable(host->clk);
+ ret = clk_prepare_enable(host->clk);
+ if (ret)
+ return ret;

/* Fresh init of NAND controller */
lpc32xx_nand_setup(host);
--
1.9.1
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