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ext4: make variable "count" signed

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commit bc75a6eb856cb1507fa907bf6c1eda91b3fef52f upstream.

Since dx_make_map() may return -EFSCORRUPTED now, so change "count" to
be a signed integer so we can correctly check for an error code returned
by dx_make_map().

Fixes: 46c116b920eb ("ext4: verify dir block before splitting it")
Cc: stable@kernel.org
Signed-off-by: Ding Xiang <dingxiang@cmss.chinamobile.com>
Link: https://lore.kernel.org/r/20220530100047.537598-1-dingxiang@cmss.chinamobile.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ding Xiang 2022-05-30 18:00:47 +08:00 committed by Greg Kroah-Hartman
parent a6b31616e5
commit 4ca0d2f1e0
1 changed files with 2 additions and 1 deletions
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3
fs/ext4/namei.c
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@ -1836,7 +1836,8 @@ static struct ext4_dir_entry_2 *do_split(handle_t *handle, struct inode *dir,
struct dx_hash_info *hinfo)
{
unsigned blocksize = dir->i_sb->s_blocksize;
unsigned count, continued;
unsigned continued;
int count;
struct buffer_head *bh2;
ext4_lblk_t newblock;
u32 hash2;