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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2007-10-16 23:25:45 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-17 08:42:44 -0700 |
| commit | 833f4077bf7c2dcff6e31526e03ec2ad91c88581 (patch) | |
| tree | 80916540be846267342c3e5e4a6255c2c18b44d5 /fs/ext2 | |
| parent | bf1d89c81352f6eca72d0c10cfee3dba29ef5efb (diff) | |
| download | lwn-833f4077bf7c2dcff6e31526e03ec2ad91c88581.tar.gz lwn-833f4077bf7c2dcff6e31526e03ec2ad91c88581.zip | |
lib: percpu_counter_init error handling
alloc_percpu can fail, propagate that error.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ext2')
| -rw-r--r-- | fs/ext2/super.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/fs/ext2/super.c b/fs/ext2/super.c index 639a32c3c9c1..2690e460f2ef 100644 --- a/fs/ext2/super.c +++ b/fs/ext2/super.c @@ -653,6 +653,7 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent) int db_count; int i, j; __le32 features; + int err; sbi = kzalloc(sizeof(*sbi), GFP_KERNEL); if (!sbi) @@ -906,12 +907,20 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent) get_random_bytes(&sbi->s_next_generation, sizeof(u32)); spin_lock_init(&sbi->s_next_gen_lock); - percpu_counter_init(&sbi->s_freeblocks_counter, + err = percpu_counter_init(&sbi->s_freeblocks_counter, ext2_count_free_blocks(sb)); - percpu_counter_init(&sbi->s_freeinodes_counter, + if (!err) { + err = percpu_counter_init(&sbi->s_freeinodes_counter, ext2_count_free_inodes(sb)); - percpu_counter_init(&sbi->s_dirs_counter, + } + if (!err) { + err = percpu_counter_init(&sbi->s_dirs_counter, ext2_count_dirs(sb)); + } + if (err) { + printk(KERN_ERR "EXT2-fs: insufficient memory\n"); + goto failed_mount3; + } /* * set up enough so that it can read an inode */ |