Commit a3623e1a authored by Haotian Zhang's avatar Haotian Zhang Committed by Miquel Raynal
Browse files

mtd: rawnand: renesas: Handle devm_pm_runtime_enable() errors 



devm_pm_runtime_enable() can fail due to memory allocation failures.
The current code ignores its return value and proceeds with
pm_runtime_resume_and_get(), which may operate on incorrectly
initialized runtime PM state.

Check the return value of devm_pm_runtime_enable() and return the
error code if it fails.

Fixes: 6a2277a0 ("mtd: rawnand: renesas: Use runtime PM instead of the raw clock API")
Signed-off-by: default avatarHaotian Zhang <vulab@iscas.ac.cn>
Reviewed-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: default avatarMiquel Raynal <miquel.raynal@bootlin.com>
parent 41bdec13

drivers/mtd/nand/raw/renesas-nand-controller.c

+4 −1
Original line number Diff line number Diff line
@@ -1336,7 +1336,10 @@ static int rnandc_probe(struct platform_device *pdev) 
	if (IS_ERR(rnandc->regs))

		return PTR_ERR(rnandc->regs);



	devm_pm_runtime_enable(&pdev->dev);

	ret = devm_pm_runtime_enable(&pdev->dev);

	if (ret)

		return ret;



	ret = pm_runtime_resume_and_get(&pdev->dev);

	if (ret < 0)

		return ret;