[PATCH -next] misc/pvpanic: fix return value check in pvpanic_pci_probe()

From: Qiheng Lin
Date: Mon Mar 29 2021 - 21:38:04 EST


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@xxxxxxxxxx>
Signed-off-by: Qiheng Lin <linqiheng@xxxxxxxxxx>
---
drivers/misc/pvpanic/pvpanic-pci.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/misc/pvpanic/pvpanic-pci.c b/drivers/misc/pvpanic/pvpanic-pci.c
index f38a80a5bbc8..9ecc4e8559d5 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)