kernel: core_hook: tweak and rename path_umount handler

rename function to ksu_path_umount to clearly differntiate it from
sys_umount. Pass mnt string directly to avoid redundant resolution
for debug logging. Small touches, to make it neater.

Signed-off-by: backslashxx <[email protected]>

Author: backslashxx

kernel/core_hook.c

@@ -510,12 +510,10 @@ static bool should_umount(struct path *path)
 }
 
 #ifdef KSU_HAS_PATH_UMOUNT
-static void ksu_umount_mnt(struct path *path, int flags)
+static void ksu_path_umount(const char *mnt, struct path *path, int flags)
 {
 	int err = path_umount(path, flags);
-	if (err) {
-		pr_info("umount %s failed: %d\n", path->dentry->d_iname, err);
-	}
+	pr_info("%s: path: %s code: %d\n", __func__, mnt, err);
 }
 #else
 static void ksu_sys_umount(const char *mnt, int flags)
@@ -553,7 +551,7 @@ static void try_umount(const char *mnt, bool check_mnt, int flags)
 	}
 
 #ifdef KSU_HAS_PATH_UMOUNT
-	ksu_umount_mnt(&path, flags);
+	ksu_path_umount(mnt, &path, flags);
 #else
 	ksu_sys_umount(mnt, flags);
 #endif