]> git.ipfire.org Git - thirdparty/linux.git/commit
s390/sclp: Add check for get_zeroed_page()
authorHaoxiang Li <haoxiang_li2024@163.com>
Tue, 18 Feb 2025 02:52:16 +0000 (10:52 +0800)
committerVasily Gorbik <gor@linux.ibm.com>
Tue, 4 Mar 2025 16:18:08 +0000 (17:18 +0100)
commit3db42c75a921854a99db0a2775814fef97415bac
tree591828e0ad9ff3953c61d9b70f2413ae085e936e
parentf0f6db9ffe33d4f5abed2e9c522743a8c8686a0f
s390/sclp: Add check for get_zeroed_page()

Add check for the return value of get_zeroed_page() in
sclp_console_init() to prevent null pointer dereference.
Furthermore, to solve the memory leak caused by the loop
allocation, add a free helper to do the free job.

Signed-off-by: Haoxiang Li <haoxiang_li2024@163.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Link: https://lore.kernel.org/r/20250218025216.2421548-1-haoxiang_li2024@163.com
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
drivers/s390/char/sclp_con.c