From: Wei Yongjun <weiyongjun1@xxxxxxxxxx>
In case of error, the function devm_kzalloc() or devm_ioport_map()
return NULL pointer not ERR_PTR(). The IS_ERR() test in the return
value check should be replaced with NULL test.
Fixes: 31b2a73c9c5f ("hwrng: amd - Migrate to managed API")
Signed-off-by: Wei Yongjun <weiyongjun1@xxxxxxxxxx>
---
drivers/char/hw_random/amd-rng.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/char/hw_random/amd-rng.c b/drivers/char/hw_random/amd-rng.c
index 4dbc5aa..4a99ac7 100644
--- a/drivers/char/hw_random/amd-rng.c
+++ b/drivers/char/hw_random/amd-rng.c
@@ -149,8 +149,8 @@ static int __init mod_init(void)
return -EIO;
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
- if (IS_ERR(priv))
- return PTR_ERR(priv);
+ if (!priv)
+ return -ENOMEM;
if (!devm_request_region(&pdev->dev, pmbase + PMBASE_OFFSET,
PMBASE_SIZE, DRV_NAME)) {
@@ -161,9 +161,9 @@ static int __init mod_init(void)
priv->iobase = devm_ioport_map(&pdev->dev, pmbase + PMBASE_OFFSET,
PMBASE_SIZE);
- if (IS_ERR(priv->iobase)) {
+ if (!priv->iobase) {
pr_err(DRV_NAME "Cannot map ioport\n");
- return PTR_ERR(priv->iobase);
+ return -ENOMEM;
}
amd_rng.priv = (unsigned long)priv;
--
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