Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-15 08:31:55 +00:00
Code Issues Packages Projects Releases Wiki Activity

s390/startup: correct "dfltcc" option parsing

Browse Source 
Currently if just "dfltcc" is passed as a kernel command line option
"val" going to be NULL, this leads to reading at address 0 in
strcmp(val, "off")

Fix that by making sure "val" is not NULL. This does not affect option
handling logic.

Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Vasily Gorbik 2020-09-25 22:42:30 +02:00
parent 3731ac5795
commit 86cde618e7
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/s390/boot/ipl_parm.c
View File

@ -230,7 +230,7 @@ void parse_boot_command_line(void)
if (!strcmp(param, "vmalloc") && val)
vmalloc_size = round_up(memparse(val, NULL), PAGE_SIZE);
if (!strcmp(param, "dfltcc")) {
if (!strcmp(param, "dfltcc") && val) {
if (!strcmp(val, "off"))
zlib_dfltcc_support = ZLIB_DFLTCC_DISABLED;
else if (!strcmp(val, "on"))