staging: mt7621-eth: fix return value check in mt7621_gsw_probe()
authorWei Yongjun <weiyongjun1@huawei.com>
Mon, 14 May 2018 18:14:25 +0000 (11:14 -0700)
committerJohn Crispin <john@phrozen.org>
Tue, 15 May 2018 04:46:08 +0000 (06:46 +0200)
commit87c254c87ed76ac1c74218e24e9627adc94c51f3
tree313b71eb63ed34ad4e599224672ff8e19f9eba2c
parentedec25187008e2e7893858f871369f9d6a0157e0
staging: mt7621-eth: fix return value check in mt7621_gsw_probe()

In case of error, the function devm_ioremap_resource() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should
be replaced with IS_ERR().

Fixes: f079b6406348 ("staging: mt7621-eth: add gigabit switch driver (GSW)")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
target/linux/ramips/files-4.14/drivers/net/ethernet/mtk/esw_rt3050.c
target/linux/ramips/files-4.14/drivers/net/ethernet/mtk/gsw_mt7620.c
target/linux/ramips/files-4.14/drivers/net/ethernet/mtk/gsw_mt7621.c