[GFS2] possible null pointer dereference fixup

[pandora-kernel.git] / fs / gfs2 / ops_address.c

diff --git a/fs/gfs2/ops_address.c b/fs/gfs2/ops_address.c
index fbb4a6a..2483d87 100644 (file)
--- a/fs/gfs2/ops_address.c
+++ b/fs/gfs2/ops_address.c
@@ -649,6 +649,10 @@ static int gfs2_write_begin(struct file *file, struct address_space *mapping,
 
        if (alloc_required) {
                al = gfs2_alloc_get(ip);
+               if (!al) {
+                       error = -ENOMEM;
+                       goto out_unlock;
+               }
 
                error = gfs2_quota_lock(ip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE);
                if (error)