atm: eni: Add check for dma_map_single
authorJiasheng Jiang <jiasheng@iscas.ac.cn>
Mon, 14 Mar 2022 01:34:48 +0000 (09:34 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 23 Mar 2022 08:16:41 +0000 (09:16 +0100)
commitb2bc45327e8cbb1adefcf5cbd53c67868428982a
treec2c6734da2379a4e7c9b12950c54f9abeb204bbf
parenta055f5f2841f7522b44a2b1eccb1951b4b03d51a
atm: eni: Add check for dma_map_single

[ Upstream commit 0f74b29a4f53627376cf5a5fb7b0b3fa748a0b2b ]

As the potential failure of the dma_map_single(),
it should be better to check it and return error
if fails.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/atm/eni.c