media: siano: remove redundant null pointer checks in cec_devnode_init()

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 <lizetao1@huawei.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

diff --git a/drivers/media/common/siano/smsdvb-debugfs.c b/drivers/media/common/siano/smsdvb-debugfs.c
index 73990e469df9da993af59e6ae0ac1c62e76b4a72..d14ba271db50de13542336adfeecb124db02554f 100644 (file)
--- a/drivers/media/common/siano/smsdvb-debugfs.c
+++ b/drivers/media/common/siano/smsdvb-debugfs.c
@@ -398,8 +398,6 @@ void smsdvb_debugfs_release(struct smsdvb_client_t *client)
 
 void smsdvb_debugfs_register(void)
 {
-       struct dentry *d;
-
        /*
         * FIXME: This was written to debug Siano USB devices. So, it creates
         * the debugfs node under <debugfs>/usb.
@@ -410,12 +408,7 @@ void smsdvb_debugfs_register(void)
         * node for sdio-based boards, but this may need some logic at sdio
         * 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;
+       smsdvb_debugfs_usb_root = debugfs_create_dir("smsdvb", usb_debug_root);
 }
 
 void smsdvb_debugfs_unregister(void)