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authorSascha Hauer <s.hauer@pengutronix.de>2014-07-31 10:38:08 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2014-09-16 08:32:10 +0200
commited6e965824303255cacc1c1a195d3684caa26bce (patch)
tree26e2b1b78498675ceae4dd2e990836c26ec1d5ec /drivers/watchdog
parent5bdc82c54a3306f2ae151a00f2df54f9240395b8 (diff)
downloadbarebox-ed6e965824303255cacc1c1a195d3684caa26bce.tar.gz
resource: Let dev_request_mem_region return an error pointer
For all users fix or add the error check. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/watchdog')
-rw-r--r--drivers/watchdog/im28wd.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/watchdog/im28wd.c b/drivers/watchdog/im28wd.c
index dd66e12..3e73ecd 100644
--- a/drivers/watchdog/im28wd.c
+++ b/drivers/watchdog/im28wd.c
@@ -22,6 +22,7 @@
#include <malloc.h>
#include <watchdog.h>
#include <reset_source.h>
+#include <linux/err.h>
#define MXS_RTC_CTRL 0x0
#define MXS_RTC_SET_ADDR 0x4
@@ -186,6 +187,8 @@ static int imx28_wd_probe(struct device_d *dev)
priv = xzalloc(sizeof(struct imx28_wd));
priv->regs = dev_request_mem_region(dev, 0);
+ if (IS_ERR(priv->regs))
+ return PTR_ERR(priv->regs);
priv->wd.set_timeout = imx28_watchdog_set_timeout;
if (!(readl(priv->regs + MXS_RTC_STAT) & MXS_RTC_STAT_WD_PRESENT)) {