2022-12-26 14:32:56

by Pali Rohár

[permalink] [raw]
Subject: [RFC PATCH v2 04/18] ntfs: Fix error processing when load_nls() fails

Ensure that specified charset in iocharset= mount option is used. On error
correctly propagate error code back to the caller.

Signed-off-by: Pali Rohár <[email protected]>
---
fs/ntfs/super.c | 18 +++++-------------
1 file changed, 5 insertions(+), 13 deletions(-)

diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c
index 55762abdc22a..b4f26035e750 100644
--- a/fs/ntfs/super.c
+++ b/fs/ntfs/super.c
@@ -94,7 +94,7 @@ static bool parse_options(ntfs_volume *vol, char *opt)
umode_t fmask = (umode_t)-1, dmask = (umode_t)-1;
int mft_zone_multiplier = -1, on_errors = -1;
int show_sys_files = -1, case_sensitive = -1, disable_sparse = -1;
- struct nls_table *nls_map = NULL, *old_nls;
+ struct nls_table *nls_map = NULL;

/* I am lazy... (-8 */
#define NTFS_GETOPT_WITH_DEFAULT(option, variable, default_value) \
@@ -195,20 +195,12 @@ static bool parse_options(ntfs_volume *vol, char *opt)
if (!v || !*v)
goto needs_arg;
use_utf8:
- old_nls = nls_map;
+ unload_nls(nls_map);
nls_map = load_nls(v);
if (!nls_map) {
- if (!old_nls) {
- ntfs_error(vol->sb, "NLS character set "
- "%s not found.", v);
- return false;
- }
- ntfs_error(vol->sb, "NLS character set %s not "
- "found. Using previous one %s.",
- v, old_nls->charset);
- nls_map = old_nls;
- } else /* nls_map */ {
- unload_nls(old_nls);
+ ntfs_error(vol->sb, "NLS character set "
+ "%s not found.", v);
+ return false;
}
} else if (!strcmp(p, "utf8")) {
bool val = false;
--
2.20.1