From: Namjae Jeon <namjae.jeon@samsung.com>
Date: Sun, 26 May 2013 02:05:32 +0000 (+0900)
Subject: f2fs: return proper error from start_gc_thread
X-Git-Tag: upstream/snapshot3+hdmi~4852^2~26
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7a267f8d7463346a139e49c8beac1b8bfe32ef97;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

f2fs: return proper error from start_gc_thread

when there is an error from kthread_run, then return proper error
rather than returning -ENOMEM.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Amit Sahrawat <a.sahrawat@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---

diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 25b083c..ddc2c67 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -91,23 +91,28 @@ int start_gc_thread(struct f2fs_sb_info *sbi)
 {
 	struct f2fs_gc_kthread *gc_th;
 	dev_t dev = sbi->sb->s_bdev->bd_dev;
+	int err = 0;
 
 	if (!test_opt(sbi, BG_GC))
-		return 0;
+		goto out;
 	gc_th = kmalloc(sizeof(struct f2fs_gc_kthread), GFP_KERNEL);
-	if (!gc_th)
-		return -ENOMEM;
+	if (!gc_th) {
+		err = -ENOMEM;
+		goto out;
+	}
 
 	sbi->gc_thread = gc_th;
 	init_waitqueue_head(&sbi->gc_thread->gc_wait_queue_head);
 	sbi->gc_thread->f2fs_gc_task = kthread_run(gc_thread_func, sbi,
 			"f2fs_gc-%u:%u", MAJOR(dev), MINOR(dev));
 	if (IS_ERR(gc_th->f2fs_gc_task)) {
+		err = PTR_ERR(gc_th->f2fs_gc_task);
 		kfree(gc_th);
 		sbi->gc_thread = NULL;
-		return -ENOMEM;
 	}
-	return 0;
+
+out:
+	return err;
 }
 
 void stop_gc_thread(struct f2fs_sb_info *sbi)