misc/pvpanic: fix return value check in pvpanic_pci_probe()
In case of error, the function pci_iomap() returns NULL pointer
not ERR_PTR(). The IS_ERR() test in the return value check
should be replaced with NULL test.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Qiheng Lin <linqiheng@huawei.com>
Link: https://lore.kernel.org/r/20210330013659.916-1-linqiheng@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/misc/pvpanic/pvpanic-pci.c b/drivers/misc/pvpanic/pvpanic-pci.c
index f38a80a..9ecc4e8 100644
--- a/drivers/misc/pvpanic/pvpanic-pci.c
+++ b/drivers/misc/pvpanic/pvpanic-pci.c
@@ -83,8 +83,8 @@ static int pvpanic_pci_probe(struct pci_dev *pdev,
return ret;
base = pci_iomap(pdev, 0, 0);
- if (IS_ERR(base))
- return PTR_ERR(base);
+ if (!base)
+ return -ENOMEM;
pi = kmalloc(sizeof(*pi), GFP_ATOMIC);
if (!pi)
