udf: fix default mode and dmode options handling
On x86 (and several other archs) mode_t is defined as "unsigned short"
and comparing unsigned shorts to negative ints is broken (because short
is promoted to int and then compared). Fix it.
Reported-and-tested-by: Laurent Riffard <laurent.riffard@free.fr>
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
diff --git a/fs/udf/super.c b/fs/udf/super.c
index 0368bf6..b9dc6ad 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -284,9 +284,9 @@
seq_printf(seq, ",gid=%u", sbi->s_gid);
if (sbi->s_umask != 0)
seq_printf(seq, ",umask=%o", sbi->s_umask);
- if (sbi->s_fmode != -1)
+ if (sbi->s_fmode != UDF_INVALID_MODE)
seq_printf(seq, ",mode=%o", sbi->s_fmode);
- if (sbi->s_dmode != -1)
+ if (sbi->s_dmode != UDF_INVALID_MODE)
seq_printf(seq, ",dmode=%o", sbi->s_dmode);
if (UDF_QUERY_FLAG(sb, UDF_FLAG_SESSION_SET))
seq_printf(seq, ",session=%u", sbi->s_session);
@@ -1892,8 +1892,8 @@
uopt.uid = -1;
uopt.gid = -1;
uopt.umask = 0;
- uopt.fmode = -1;
- uopt.dmode = -1;
+ uopt.fmode = UDF_INVALID_MODE;
+ uopt.dmode = UDF_INVALID_MODE;
sbi = kzalloc(sizeof(struct udf_sb_info), GFP_KERNEL);
if (!sbi)