diff options
| author | Fabian Frederick | 2015-04-08 21:23:51 +0200 |
|---|---|---|
| committer | Jan Kara | 2015-05-18 11:23:03 +0200 |
| commit | 5ceb8b554dcaaf6844415cd2616ce2e0132530fa (patch) | |
| tree | c80877de890e6f3ab8d47aae705d39401031efb8 /fs/udf/unicode.c | |
| parent | c0655fe9b0901a968800f56687be3c62b4cce5d2 (diff) | |
udf: Return -ENOMEM when allocation fails in udf_get_filename()
Return -ENOMEM when allocation fails in udf_get_filename(). Update
udf_pc_to_char(), udf_readdir(), and udf_find_entry() to handle the
error appropriately. This allows us to pass appropriate error to
userspace instead of corrupting symlink contents by omitting some path
elements.
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/udf/unicode.c')
| -rw-r--r-- | fs/udf/unicode.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/fs/udf/unicode.c b/fs/udf/unicode.c index b84fee372734..4911c1d84882 100644 --- a/fs/udf/unicode.c +++ b/fs/udf/unicode.c @@ -338,15 +338,17 @@ int udf_get_filename(struct super_block *sb, uint8_t *sname, int slen, uint8_t *dname, int dlen) { struct ustr *filename, *unifilename; - int len = 0; + int ret = 0; filename = kmalloc(sizeof(struct ustr), GFP_NOFS); if (!filename) - return 0; + return -ENOMEM; unifilename = kmalloc(sizeof(struct ustr), GFP_NOFS); - if (!unifilename) + if (!unifilename) { + ret = -ENOMEM; goto out1; + } if (udf_build_ustr_exact(unifilename, sname, slen)) goto out2; @@ -367,14 +369,14 @@ int udf_get_filename(struct super_block *sb, uint8_t *sname, int slen, } else goto out2; - len = udf_translate_to_linux(dname, dlen, + ret = udf_translate_to_linux(dname, dlen, filename->u_name, filename->u_len, unifilename->u_name, unifilename->u_len); out2: kfree(unifilename); out1: kfree(filename); - return len; + return ret; } int udf_put_filename(struct super_block *sb, const uint8_t *sname, |