Protect BMM_DUMP with the global mutex

Signed-off-by: Rabeeh Khoury <rabeeh@solid-run.com>
rabeeh · Mar 29, 2013 · b9fc5ff · b9fc5ff
1 parent 1be2c76
commit b9fc5ff
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/drivers/misc/bmm_drv.c b/drivers/misc/bmm_drv.c
@@ -159,10 +159,12 @@ static void bmm_dump_list(struct list_head *head)
 
 static void bmm_dump_all(void)
 {
+	mutex_lock(&bmm_mutex);
 	pr_info("free block list:\n");
 	bmm_dump_list(&(bmm_free_block.list));
 	pr_info("used block list:\n");
 	bmm_dump_list(&(bmm_used_block.list));
+	mutex_unlock(&bmm_mutex);
 }
 
 static struct bmm_block_t *bmm_search_vaddr(struct list_head *head,