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| author | Jason Gunthorpe <jgunthorpe@obsidianresearch.com> | 2012-12-07 23:44:46 +0100 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@iguana.be> | 2012-12-19 22:25:10 +0100 |
| commit | 8c4c419ca3bd5a5b3389114e037a9d17bdec3a5f (patch) | |
| tree | 0b8062a9fcf40a0304ccbf3083e7ecab1db07387 /drivers/watchdog/orion_wdt.c | |
| parent | watchdog: sp5100_tco: Add SB8x0 chipset support (diff) | |
| download | linux-8c4c419ca3bd5a5b3389114e037a9d17bdec3a5f.tar.xz linux-8c4c419ca3bd5a5b3389114e037a9d17bdec3a5f.zip | |
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: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'drivers/watchdog/orion_wdt.c')
| -rw-r--r-- | 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 0478b001b1ef..7c18b3bffcf7 100644 --- a/drivers/watchdog/orion_wdt.c +++ b/drivers/watchdog/orion_wdt.c @@ -156,6 +156,8 @@ static int 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; |