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-rw-r--r--fs/fat/cache.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/fat/cache.c b/fs/fat/cache.c
index ae8200f84e39..1cc7038e273d 100644
--- a/fs/fat/cache.c
+++ b/fs/fat/cache.c
@@ -151,6 +151,13 @@ static void fat_cache_add(struct inode *inode, struct fat_cache_id *new)
spin_unlock(&MSDOS_I(inode)->cache_lru_lock);
tmp = fat_cache_alloc(inode);
+ if (!tmp) {
+ spin_lock(&MSDOS_I(inode)->cache_lru_lock);
+ MSDOS_I(inode)->nr_caches--;
+ spin_unlock(&MSDOS_I(inode)->cache_lru_lock);
+ return;
+ }
+
spin_lock(&MSDOS_I(inode)->cache_lru_lock);
cache = fat_cache_merge(inode, new);
if (cache != NULL) {