mailbox: bcm-ferxrm-mailbox: Fix error check for dma_map_sg
authorJack Wang <jinpu.wang@ionos.com>
Fri, 26 Aug 2022 10:13:35 +0000 (12:13 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 26 Oct 2022 10:35:21 +0000 (12:35 +0200)
commit25a4fb0e1a763d2cc9aa5049d584790e74355a38
tree3ad66d66fbaa0875cdd9fdd3140a02e19b483f85
parentb8fcd9ab0f6596bc3c3b601ad859181cf84dbade
mailbox: bcm-ferxrm-mailbox: Fix error check for dma_map_sg

[ Upstream commit 6b207ce8a96a71e966831e3a13c38143ba9a73c1 ]

dma_map_sg return 0 on error, fix the error check, and return -EIO
to caller.

Fixes: dbc049eee730 ("mailbox: Add driver for Broadcom FlexRM ring manager")
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/mailbox/bcm-flexrm-mailbox.c