[PATCH] ARM: Orion: Fix possible null-deference in orion_wdt_probe

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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

Signed-off-by: Jason Gunthorpe <jgunthorpe@xxxxxxxxxxxxxxxxxxxx>
---
 drivers/watchdog/orion_wdt.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/watchdog/orion_wdt.c b/drivers/watchdog/orion_wdt.c
index c20f96b..140a1e3 100644
--- a/drivers/watchdog/orion_wdt.c
+++ b/drivers/watchdog/orion_wdt.c
@@ -156,6 +156,8 @@ static int __devinit orion_wdt_probe(struct platform_device *pdev)
 	wdt_tclk = clk_get_rate(clk);
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res)
+		return -ENODEV;
 	wdt_reg = devm_ioremap(&pdev->dev, res->start, resource_size(res));
 	if (!wdt_reg)
 		return -ENOMEM;
-- 
1.7.5.4

--
To unsubscribe from this list: send the line "unsubscribe linux-watchdog" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [IETF Annouce]     [Security]     [Bugtraq]     [Linux]     [Linux OMAP]     [Linux MIPS]     [eCos]     [Asterisk Internet PBX]     [Linux API]

  Powered by Linux