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udf: improve error management in udf_CS0toUTF8()

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udf_CS0toUTF8() now returns -EINVAL on error.
udf_load_pvoldesc() and udf_get_filename() do the same.

Suggested-by: Jan Kara <jack@suse.cz>
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Fabian Frederick 2015-04-08 21:23:54 +02:00 • committed by Jan Kara
parent d67e4a4814
commit e9d4cf411f
2 changed files with 18 additions and 12 deletions
Download patch file Download diff file Expand all files Collapse all files

7
fs/udf/unicode.c
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@ -89,7 +89,7 @@ static void udf_build_ustr_exact(struct ustr *dest, dstring *ptr, int exactsize)
* both of type "struct ustr *"
*
* POST-CONDITIONS
* <return> Zero on success.
* <return> >= 0 on success.
*
* HISTORY
* November 12, 1997 - Andrew E. Mileski
@ -112,7 +112,7 @@ int udf_CS0toUTF8(struct ustr *utf_o, const struct ustr *ocu_i)
memset(utf_o, 0, sizeof(struct ustr));
pr_err("unknown compression code (%d) stri=%s\n",
cmp_id, ocu_i->u_name);
return 0;
return -EINVAL;
}
ocu = ocu_i->u_name;
@ -350,7 +350,8 @@ int udf_get_filename(struct super_block *sb, uint8_t *sname, int slen,
udf_build_ustr_exact(unifilename, sname, slen);
if (UDF_QUERY_FLAG(sb, UDF_FLAG_UTF8)) {
if (!udf_CS0toUTF8(filename, unifilename)) {
ret = udf_CS0toUTF8(filename, unifilename);
if (ret < 0) {
udf_debug("Failed in udf_get_filename: sname = %s\n",
sname);
goto out2;