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authorWei Yongjun <weiyongjun1@huawei.com>2018-03-22 02:10:07 +0000
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-03-22 18:31:04 +0100
commit3eb3c3e32eef50e3a3375bf1636e05f5ec4b1210 (patch)
tree2827962276b5c87b6f9918036589d1e59dacc1c7 /drivers/staging/mt7621-eth
parentstaging: mt7621-eth: fix return value check in mtk_connect_phy_node() (diff)
downloadlinux-dev-3eb3c3e32eef50e3a3375bf1636e05f5ec4b1210.tar.xz
linux-dev-3eb3c3e32eef50e3a3375bf1636e05f5ec4b1210.zip
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>
Diffstat (limited to 'drivers/staging/mt7621-eth')
-rw-r--r--drivers/staging/mt7621-eth/gsw_mt7621.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/staging/mt7621-eth/gsw_mt7621.c b/drivers/staging/mt7621-eth/gsw_mt7621.c
index b49ee946e6bd..ce8d7d7577c7 100644
--- a/drivers/staging/mt7621-eth/gsw_mt7621.c
+++ b/drivers/staging/mt7621-eth/gsw_mt7621.c
@@ -263,8 +263,8 @@ static int mt7621_gsw_probe(struct platform_device *pdev)
return -ENOMEM;
gsw->base = devm_ioremap_resource(&pdev->dev, res);
- if (!gsw->base)
- return -EADDRNOTAVAIL;
+ if (IS_ERR(gsw->base))
+ return PTR_ERR(gsw->base);
gsw->dev = &pdev->dev;
gsw->irq = irq_of_parse_and_map(pdev->dev.of_node, 0);