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ext4: fix leak in check_filename()

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root_first_block_buffer should be free()d in all cases, not just when an
error occurs. Fix the success exit path of the function to do this.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Lukasz Majewski <l.majewski@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
This commit is contained in:
Stephen Warren 2015-09-04 22:03:45 -06:00 committed by Tom Rini
parent 934b14f2bb
commit d56b2015e6
1 changed files with 3 additions and 2 deletions
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5
fs/ext4/ext4_common.c
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@ -770,6 +770,7 @@ static int check_filename(char *filename, unsigned int blknr)
struct ext2_dirent *previous_dir = NULL;
char *ptr = NULL;
struct ext_filesystem *fs = get_fs();
int ret = -1;
/* get the first block of root */
first_block_no_of_root = blknr;
@ -823,12 +824,12 @@ static int check_filename(char *filename, unsigned int blknr)
if (ext4fs_put_metadata(root_first_block_addr,
first_block_no_of_root))
goto fail;
return inodeno;
ret = inodeno;
}
fail:
free(root_first_block_buffer);
return -1;
return ret;
}
int ext4fs_filename_check(char *filename)