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Roberto Sassu c1b29cee41 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 09:32:37 +02:00

appldata

s390: appldata: drop owner assignment from platform_drivers

2014-10-20 16:20:13 +02:00

boot

s390/decompressor: fix initrd corruption caused by bss clear

2017-04-12 12:38:34 +02:00

configs

s390/defconfig: set SCSI_DH=y

2015-10-01 10:48:36 +02:00

crypto

s390/crypto: unlock on error in prng_tdes_read()