Yi Yang 4b02493838 xtensa/simdisk: fix proc_read_simdisk() ... commit b011946d03 upstream. The commit a69755b187 ("xtensa simdisk: switch to proc_create_data()") split read operation into two parts, first retrieving the path when it's non-null and second retrieving the trailing '\n'. However when the path is non-null the first simple_read_from_buffer updates ppos, and the second simple_read_from_buffer returns 0 if ppos is greater than 1 (i.e. almost always). As a result reading from that proc file is almost always empty. Fix it by making a temporary copy of the path with the trailing '\n' and using simple_read_from_buffer on that copy. Cc: stable@vger.kernel.org Fixes: a69755b187 ("xtensa simdisk: switch to proc_create_data()") Signed-off-by: Yi Yang <yiyang13@huawei.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-06-09 10:23:28 +02:00
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boot	xtensa: fix DTC warning unit_address_format	2022-04-13 20:59:09 +02:00
configs	…
include	xtensa: use fallback for random_get_entropy() instead of zero	2022-05-30 09:29:14 +02:00
kernel	ptrace/xtensa: Replace PT_SINGLESTEP with TIF_SINGLESTEP	2022-06-09 10:22:29 +02:00
lib	…
mm	…
platforms	xtensa/simdisk: fix proc_read_simdisk()	2022-06-09 10:23:28 +02:00
variants	…
Kbuild	…
Kconfig	…
Kconfig.debug	…
Makefile	…