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lib: percpu_counter_init error handling

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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>
This commit is contained in:
Peter Zijlstra
2007-10-16 23:25:45 -07:00
committed by Linus Torvalds
parent bf1d89c813
commit 833f4077bf
5 changed files with 52 additions and 18 deletions
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15
fs/ext2/super.c
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@@ -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
*/