From: Dan Carpenter <error27@gmail.com>
To: Mike Isely <isely@pobox.com>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>,
linux-media@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [patch] V4L/DVB: pvrusb2: remove unneeded NULL checks
Date: Thu, 19 Aug 2010 11:50:04 +0200 [thread overview]
Message-ID: <20100819095004.GN645@bicker> (raw)
We dereference "maskptr" unconditionally at the start of the function
and also inside the call to parse_tlist() towards the end of the
function. This function is called from store_val_any() and it always
passes a non-NULL pointer.
Signed-off-by: Dan Carpenter <error27@gmail.com>
diff --git a/drivers/media/video/pvrusb2/pvrusb2-ctrl.c b/drivers/media/video/pvrusb2/pvrusb2-ctrl.c
index 1b992b8..55ea914 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-ctrl.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-ctrl.c
@@ -513,7 +513,7 @@ int pvr2_ctrl_sym_to_value(struct pvr2_ctrl *cptr,
if (ret >= 0) {
ret = pvr2_ctrl_range_check(cptr,*valptr);
}
- if (maskptr) *maskptr = ~0;
+ *maskptr = ~0;
} else if (cptr->info->type == pvr2_ctl_bool) {
ret = parse_token(ptr,len,valptr,boolNames,
ARRAY_SIZE(boolNames));
@@ -522,7 +522,7 @@ int pvr2_ctrl_sym_to_value(struct pvr2_ctrl *cptr,
} else if (ret == 0) {
*valptr = (*valptr & 1) ? !0 : 0;
}
- if (maskptr) *maskptr = 1;
+ *maskptr = 1;
} else if (cptr->info->type == pvr2_ctl_enum) {
ret = parse_token(
ptr,len,valptr,
@@ -531,7 +531,7 @@ int pvr2_ctrl_sym_to_value(struct pvr2_ctrl *cptr,
if (ret >= 0) {
ret = pvr2_ctrl_range_check(cptr,*valptr);
}
- if (maskptr) *maskptr = ~0;
+ *maskptr = ~0;
} else if (cptr->info->type == pvr2_ctl_bitmask) {
ret = parse_tlist(
ptr,len,maskptr,valptr,
next reply other threads:[~2010-08-19 9:50 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-19 9:50 Dan Carpenter [this message]
2010-08-19 14:07 ` [patch] V4L/DVB: pvrusb2: remove unneeded NULL checks Mike Isely
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