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path: root/fs/ubifs/super.c
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Diffstat (limited to 'fs/ubifs/super.c')
-rw-r--r--fs/ubifs/super.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index 522c3fd7eb3c..3589eab02a2f 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -36,6 +36,7 @@
#include <linux/mount.h>
#include <linux/math64.h>
#include <linux/writeback.h>
+#include <linux/smp_lock.h>
#include "ubifs.h"
/*
@@ -1770,17 +1771,22 @@ static int ubifs_remount_fs(struct super_block *sb, int *flags, char *data)
return err;
}
+ lock_kernel();
if ((sb->s_flags & MS_RDONLY) && !(*flags & MS_RDONLY)) {
if (c->ro_media) {
ubifs_msg("cannot re-mount due to prior errors");
+ unlock_kernel();
return -EROFS;
}
err = ubifs_remount_rw(c);
- if (err)
+ if (err) {
+ unlock_kernel();
return err;
+ }
} else if (!(sb->s_flags & MS_RDONLY) && (*flags & MS_RDONLY)) {
if (c->ro_media) {
ubifs_msg("cannot re-mount due to prior errors");
+ unlock_kernel();
return -EROFS;
}
ubifs_remount_ro(c);
@@ -1795,6 +1801,7 @@ static int ubifs_remount_fs(struct super_block *sb, int *flags, char *data)
}
ubifs_assert(c->lst.taken_empty_lebs > 0);
+ unlock_kernel();
return 0;
}