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| author | Pramod Gurav <pramod.gurav@smartplayin.com> | 2014-10-30 14:51:35 +0530 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2014-11-25 16:18:49 +0000 |
| commit | 51a7e02bb629498c32915881ed4fb61ef778282a (patch) | |
| tree | d645c7de99eb01976e84eeed22f5760658732e08 /drivers/mfd/db8500-prcmu.c | |
| parent | 1b9b46d05f887aec418b3a5f4f55abf79316fcda (diff) | |
| download | linux-51a7e02bb629498c32915881ed4fb61ef778282a.tar.gz | |
mfd: db8500-prcmu: Check return of devm_ioremap for error
Error check around return value of devm_ioremap is missing. Add the same to avoid NULL pointer dereference. Signed-off-by: Pramod Gurav <pramod.gurav@smartplayin.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd/db8500-prcmu.c')
| -rw-r--r-- | drivers/mfd/db8500-prcmu.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c index 193cf168ba84..89ae8bf665b4 100644 --- a/drivers/mfd/db8500-prcmu.c +++ b/drivers/mfd/db8500-prcmu.c @@ -3167,6 +3167,11 @@ static int db8500_prcmu_probe(struct platform_device *pdev) } tcdm_base = devm_ioremap(&pdev->dev, res->start, resource_size(res)); + if (!tcdm_base) { + dev_err(&pdev->dev, + "failed to ioremap prcmu-tcdm register memory\n"); + return -ENOENT; + } /* Clean up the mailbox interrupts after pre-kernel code. */ writel(ALL_MBOX_BITS, PRCM_ARM_IT1_CLR); |