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Commit 51a7e02b authored by Pramod Gurav's avatar Pramod Gurav Committed by Lee Jones
Browse files

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: default avatarPramod Gurav <pramod.gurav@smartplayin.com>
Acked-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
parent 1b9b46d0

drivers/mfd/db8500-prcmu.c

+5 −0
Original line number Diff line number Diff line
@@ -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);