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Commit 8c4c419c authored by Jason Gunthorpe's avatar Jason Gunthorpe Committed by Wim Van Sebroeck
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watchdog: Orion: Fix possible null-deference in orion_wdt_probe 



If the DT does not include a regs parameter then the null res
would be dereferenced.

Signed-off-by: default avatarJason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: default avatarWim Van Sebroeck <wim@iguana.be>
parent 740fbddf

drivers/watchdog/orion_wdt.c

+2 −0
Original line number Original line Diff line number Diff line
@@ -156,6 +156,8 @@ static int orion_wdt_probe(struct platform_device *pdev) 
	wdt_tclk = clk_get_rate(clk);

	wdt_tclk = clk_get_rate(clk);





	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	if (!res)

		return -ENODEV;

	wdt_reg = devm_ioremap(&pdev->dev, res->start, resource_size(res));

	wdt_reg = devm_ioremap(&pdev->dev, res->start, resource_size(res));

	if (!wdt_reg)

	if (!wdt_reg)

		return -ENOMEM;

		return -ENOMEM;