usb: musb: debugfs: fix error check

debugfs will return NULL on failure, so
we must check for !ptr instead of IS_ERR(ptr).

Signed-off-by: Felipe Balbi <balbi@ti.com>

1 files changed, 6 insertions, 6 deletions

diff --git a/drivers/usb/musb/musb_debugfs.c b/drivers/usb/musb/musb_debugfs.c
index 219d0fba584e..40a37c91cc10 100644
--- a/drivers/usb/musb/musb_debugfs.c
+++ b/drivers/usb/musb/musb_debugfs.c
@@ -242,22 +242,22 @@ int __devinit musb_init_debugfs(struct musb *musb)
         int                     ret;
 
         root = debugfs_create_dir("musb", NULL);
-        if (IS_ERR(root)) {
-                ret = PTR_ERR(root);
+        if (!root) {
+                ret = -ENOMEM;
                 goto err0;
         }
 
         file = debugfs_create_file("regdump", S_IRUGO, root, musb,
                         &musb_regdump_fops);
-        if (IS_ERR(file)) {
-                ret = PTR_ERR(file);
+        if (!file) {
+                ret = -ENOMEM;
                 goto err1;
         }
 
         file = debugfs_create_file("testmode", S_IRUGO | S_IWUSR,
                         root, musb, &musb_test_mode_fops);
-        if (IS_ERR(file)) {
-                ret = PTR_ERR(file);
+        if (!file) {
+                ret = -ENOMEM;
                 goto err1;
         }