diff options
| author | Haotian Zhang <vulab@iscas.ac.cn> | 2025-11-20 10:40:39 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-12-07 06:08:22 +0900 |
| commit | 0d5307f3aef334ead09be4c73e2db23261174dc4 (patch) | |
| tree | 5065f73232a4e580f67ccd43c626870ab53fd0dd | |
| parent | 34147477eeab24077fcfe9649e282849347d760c (diff) | |
mailbox: mailbox-test: Fix debugfs_create_dir error checking
[ Upstream commit 3acf1028f5003731977f750a7070f3321a9cb740 ]
The debugfs_create_dir() function returns ERR_PTR() on error, not NULL.
The current null-check fails to catch errors.
Use IS_ERR() to correctly check for errors.
Fixes: 8ea4484d0c2b ("mailbox: Add generic mechanism for testing Mailbox Controllers")
Signed-off-by: Haotian Zhang <vulab@iscas.ac.cn>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/mailbox/mailbox-test.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mailbox/mailbox-test.c b/drivers/mailbox/mailbox-test.c index abcee58e851c..29c04157b5e8 100644 --- a/drivers/mailbox/mailbox-test.c +++ b/drivers/mailbox/mailbox-test.c @@ -267,7 +267,7 @@ static int mbox_test_add_debugfs(struct platform_device *pdev, return 0; tdev->root_debugfs_dir = debugfs_create_dir(dev_name(&pdev->dev), NULL); - if (!tdev->root_debugfs_dir) { + if (IS_ERR(tdev->root_debugfs_dir)) { dev_err(&pdev->dev, "Failed to create Mailbox debugfs\n"); return -EINVAL; } |