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watchdog: machzwd : fix warning Using plain integer as NULL pointer 

Changes passing function argument 0 to NULL to avoid below sparse
warning

 CHECK   drivers/watchdog//machzwd.c
drivers/watchdog//machzwd.c:321:25: warning: Using plain integer as NULL
pointer

Signed-off-by: Hariprasad Kelam <hariprasad.kelam@gmail.com>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
This commit is contained in:
Hariprasad Kelam 2019-04-06 18:44:15 +05:30 committed by Wim Van Sebroeck
parent 8dd29f1951
commit 33052fbb4f
1 changed files with 1 additions and 1 deletions
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2
drivers/watchdog/machzwd.c
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@ -318,7 +318,7 @@ static long zf_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
case WDIOC_GETBOOTSTATUS:
return put_user(0, p);
case WDIOC_KEEPALIVE:
zf_ping(0);
zf_ping(NULL);
break;
default:
return -ENOTTY;