This is a note to let you know that I've just added the patch titled
video: fbdev: pvr2fb: initialize variables
to the 5.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
video-fbdev-pvr2fb-initialize-variables.patch
and it can be found in the queue-5.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit ea9edc65049907f2b2c9e140938bd09e6b6511b8
Author: Tom Rix <trix@xxxxxxxxxx>
Date: Mon Jul 20 12:18:45 2020 -0700
video: fbdev: pvr2fb: initialize variables
[ Upstream commit 8e1ba47c60bcd325fdd097cd76054639155e5d2e ]
clang static analysis reports this repesentative error
pvr2fb.c:1049:2: warning: 1st function call argument
is an uninitialized value [core.CallAndMessage]
if (*cable_arg)
^~~~~~~~~~~~~~~
Problem is that cable_arg depends on the input loop to
set the cable_arg[0]. If it does not, then some random
value from the stack is used.
A similar problem exists for output_arg.
So initialize cable_arg and output_arg.
Signed-off-by: Tom Rix <trix@xxxxxxxxxx>
Acked-by: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20200720191845.20115-1-trix@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/video/fbdev/pvr2fb.c b/drivers/video/fbdev/pvr2fb.c
index 2d9f69b93392a..f4add36cb5f4d 100644
--- a/drivers/video/fbdev/pvr2fb.c
+++ b/drivers/video/fbdev/pvr2fb.c
@@ -1028,6 +1028,8 @@ static int __init pvr2fb_setup(char *options)
if (!options || !*options)
return 0;
+ cable_arg[0] = output_arg[0] = 0;
+
while ((this_opt = strsep(&options, ","))) {
if (!*this_opt)
continue;
