diff mbox series

iommu/qcom: Simplify a test in 'qcom_iommu_add_device()'

Message ID 20190916202936.30403-1-christophe.jaillet@wanadoo.fr (mailing list archive)
State Accepted
Commit da6b05dce2a9c69880c3b9838938d5714703e80d
Headers show
Series iommu/qcom: Simplify a test in 'qcom_iommu_add_device()' | expand

Commit Message

Christophe JAILLET Sept. 16, 2019, 8:29 p.m. UTC
'iommu_group_get_for_dev()' never returns NULL, so this test can be
simplified a bit.

This way, the test is consistent with all other calls to
'iommu_group_get_for_dev()'.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
 drivers/iommu/qcom_iommu.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Dan Carpenter Sept. 17, 2019, 6:23 a.m. UTC | #1
On Mon, Sep 16, 2019 at 10:29:36PM +0200, Christophe JAILLET wrote:
> 'iommu_group_get_for_dev()' never returns NULL, so this test can be
> simplified a bit.
> 

It used to until commit 72dcac633475 ("iommu: Warn once when device_group
callback returns NULL").

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>

regards,
dan carpenter
Joerg Roedel Oct. 15, 2019, 9:51 a.m. UTC | #2
On Mon, Sep 16, 2019 at 10:29:36PM +0200, Christophe JAILLET wrote:
> 'iommu_group_get_for_dev()' never returns NULL, so this test can be
> simplified a bit.
> 
> This way, the test is consistent with all other calls to
> 'iommu_group_get_for_dev()'.
> 
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> ---
>  drivers/iommu/qcom_iommu.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

Applied, thanks.
diff mbox series

Patch

diff --git a/drivers/iommu/qcom_iommu.c b/drivers/iommu/qcom_iommu.c
index c31e7bc4ccbe..3d99ec868892 100644
--- a/drivers/iommu/qcom_iommu.c
+++ b/drivers/iommu/qcom_iommu.c
@@ -539,8 +539,8 @@  static int qcom_iommu_add_device(struct device *dev)
 	}
 
 	group = iommu_group_get_for_dev(dev);
-	if (IS_ERR_OR_NULL(group))
-		return PTR_ERR_OR_ZERO(group);
+	if (IS_ERR(group))
+		return PTR_ERR(group);
 
 	iommu_group_put(group);
 	iommu_device_link(&qcom_iommu->iommu, dev);