From 833f4077bf7c2dcff6e31526e03ec2ad91c88581 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Tue, 16 Oct 2007 23:25:45 -0700 Subject: lib: percpu_counter_init error handling alloc_percpu can fail, propagate that error. Signed-off-by: Peter Zijlstra Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/ext4/super.c | 21 +++++++++++++++------ 1 file changed, 15 insertions(+), 6 deletions(-) (limited to 'fs/ext4') diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 1814d4b8ff1f..157c64c9a4e7 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1479,6 +1479,7 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent) int needs_recovery; __le32 features; __u64 blocks_count; + int err; sbi = kzalloc(sizeof(*sbi), GFP_KERNEL); if (!sbi) @@ -1759,12 +1760,20 @@ static int ext4_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, - ext4_count_free_blocks(sb)); - percpu_counter_init(&sbi->s_freeinodes_counter, - ext4_count_free_inodes(sb)); - percpu_counter_init(&sbi->s_dirs_counter, - ext4_count_dirs(sb)); + err = percpu_counter_init(&sbi->s_freeblocks_counter, + ext4_count_free_blocks(sb)); + if (!err) { + err = percpu_counter_init(&sbi->s_freeinodes_counter, + ext4_count_free_inodes(sb)); + } + if (!err) { + err = percpu_counter_init(&sbi->s_dirs_counter, + ext4_count_dirs(sb)); + } + if (err) { + printk(KERN_ERR "EXT4-fs: insufficient memory\n"); + goto failed_mount3; + } /* per fileystem reservation list head & lock */ spin_lock_init(&sbi->s_rsv_window_lock); -- cgit v1.2.2