android_kernel_xiaomi_sdm845/arch/s390/lib
Roberto Sassu b476b7ea7a s390: fix strrchr() implementation
commit 8e0ab8e26b72a80e991c66a8abc16e6c856abe3d upstream.

Fix two problems found in the strrchr() implementation for s390
architectures: evaluate empty strings (return the string address instead of
NULL, if '\0' is passed as second argument); evaluate the first character
of non-empty strings (the current implementation stops at the second).

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org
Reported-by: Heiko Carstens <hca@linux.ibm.com> (incorrect behavior with empty strings)
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Link: https://lore.kernel.org/r/20211005120836.60630-1-roberto.sassu@huawei.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-10-27 09:33:57 +02:00
..
delay.c
find.c
Makefile
mem.S s390/lib: use expoline for all bcr instructions 2018-09-15 09:43:06 +02:00
probes.c
spinlock.c
string.c s390: fix strrchr() implementation 2021-10-27 09:33:57 +02:00
uaccess.c
xor.c