Since the debugfs_create_dir() never returns a null pointer, checking
the return value for a null pointer is redundant, Remove this check
since debugfs_create_file can handle IS_ERR pointers.

Signed-off-by: Li Zetao <redacted>
---
v1 -> v2: Remove this check since debugfs_create_file can
handle IS_ERR pointers.
v1:
https://lore.kernel.org/all/20240903143607.2004802-2-lizetao1@huawei.com/ (local)

 drivers/media/common/siano/smsdvb-debugfs.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/media/common/siano/smsdvb-debugfs.c b/drivers/media/common/siano/smsdvb-debugfs.c
index 73990e469df9..9db38ae4ecee 100644
--- a/drivers/media/common/siano/smsdvb-debugfs.c
+++ b/drivers/media/common/siano/smsdvb-debugfs.c

@@ -411,10 +411,6 @@ void smsdvb_debugfs_register(void)
 	 * subsystem.
 	 */
 	d = debugfs_create_dir("smsdvb", usb_debug_root);
-	if (IS_ERR_OR_NULL(d)) {
-		pr_err("Couldn't create sysfs node for smsdvb\n");
-		return;
-	}
 	smsdvb_debugfs_usb_root = d;
 }
 

-- 
2.34.1