ext4: "ret" may be used uninitialized in ext4_lazyinit_thread()
Theodore Ts'o [Tue, 2 Nov 2010 18:19:30 +0000 (14:19 -0400)]
Newer GCC's reported the following build warning:

   fs/ext4/super.c: In function 'ext4_lazyinit_thread':
   fs/ext4/super.c:2702: warning: 'ret' may be used uninitialized in this function

Fix it by removing the need for the ret variable in the first place.

Signed-off-by: "Lukas Czerner" <lczerner@redhat.com>
Reported-by: "Stefan Richter" <stefanr@s5r6.in-berlin.de>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

fs/ext4/super.c

index 8d1d942..4d7ef31 100644 (file)
@@ -2699,7 +2699,6 @@ static int ext4_lazyinit_thread(void *arg)
        struct ext4_li_request *elr;
        unsigned long next_wakeup;
        DEFINE_WAIT(wait);
-       int ret;
 
        BUG_ON(NULL == eli);
 
@@ -2723,13 +2722,12 @@ cont_thread:
                        elr = list_entry(pos, struct ext4_li_request,
                                         lr_request);
 
-                       if (time_after_eq(jiffies, elr->lr_next_sched))
-                               ret = ext4_run_li_request(elr);
-
-                       if (ret) {
-                               ret = 0;
-                               ext4_remove_li_request(elr);
-                               continue;
+                       if (time_after_eq(jiffies, elr->lr_next_sched)) {
+                               if (ext4_run_li_request(elr) != 0) {
+                                       /* error, remove the lazy_init job */
+                                       ext4_remove_li_request(elr);
+                                       continue;
+                               }
                        }
 
                        if (time_before(elr->lr_next_sched, next_wakeup))