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authorJames Hogan <james.hogan@imgtec.com>2015-02-21 00:45:45 +0100
committerWim Van Sebroeck <wim@iguana.be>2015-03-27 08:47:50 +0100
commitae6ee2fd47f76db5a1cd02c23378057bd21c2c8d (patch)
tree333e2aecdf26f2d9e79fec69d6d7e616504c84fc /drivers/watchdog
parentwatchdog: imgpdc: Fix probe NULL pointer dereference (diff)
downloadlinux-ae6ee2fd47f76db5a1cd02c23378057bd21c2c8d.tar.xz
linux-ae6ee2fd47f76db5a1cd02c23378057bd21c2c8d.zip
watchdog: imgpdc: Fix default heartbeat
The IMG PDC watchdog driver heartbeat module parameter has no default so it is initialised to zero. This results in the following warning during probe: imgpdc-wdt 2006000.wdt: Initial timeout out of range! setting max timeout The module parameter description implies that the default value should be PDC_WDT_DEF_TIMEOUT, which isn't yet used, so initialise it to that. Also tweak the heartbeat module parameter description for consistency. Fixes: 93937669e9b5 ("watchdog: ImgTec PDC Watchdog Timer Driver") Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Ezequiel Garcia <ezequiel.garcia@imgtec.com> Cc: Naidu Tellapati <Naidu.Tellapati@imgtec.com> Cc: Jude Abraham <Jude.Abraham@imgtec.com> Cc: linux-watchdog@vger.kernel.org Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'drivers/watchdog')
-rw-r--r--drivers/watchdog/imgpdc_wdt.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/watchdog/imgpdc_wdt.c b/drivers/watchdog/imgpdc_wdt.c
index 32c35eb31e65..0deaa4f971f5 100644
--- a/drivers/watchdog/imgpdc_wdt.c
+++ b/drivers/watchdog/imgpdc_wdt.c
@@ -42,10 +42,10 @@
#define PDC_WDT_MIN_TIMEOUT 1
#define PDC_WDT_DEF_TIMEOUT 64
-static int heartbeat;
+static int heartbeat = PDC_WDT_DEF_TIMEOUT;
module_param(heartbeat, int, 0);
-MODULE_PARM_DESC(heartbeat, "Watchdog heartbeats in seconds. "
- "(default = " __MODULE_STRING(PDC_WDT_DEF_TIMEOUT) ")");
+MODULE_PARM_DESC(heartbeat, "Watchdog heartbeats in seconds "
+ "(default=" __MODULE_STRING(PDC_WDT_DEF_TIMEOUT) ")");
static bool nowayout = WATCHDOG_NOWAYOUT;
module_param(nowayout, bool, 0);