Merge tag 'trace-v4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt...

[sfrench/cifs-2.6.git] / drivers / md / dm-cache-background-tracker.c

diff --git a/drivers/md/dm-cache-background-tracker.c b/drivers/md/dm-cache-background-tracker.c
index 9b1afdfb13f0f9510183ab916e642206023a60c5..70723389129163146666664e053d03e4263d677a 100644 (file)
--- a/drivers/md/dm-cache-background-tracker.c
+++ b/drivers/md/dm-cache-background-tracker.c
@@ -33,6 +33,11 @@ struct background_tracker *btracker_create(unsigned max_work)
 {
        struct background_tracker *b = kmalloc(sizeof(*b), GFP_KERNEL);
 
+       if (!b) {
+               DMERR("couldn't create background_tracker");
+               return NULL;
+       }
+
        b->max_work = max_work;
        atomic_set(&b->pending_promotes, 0);
        atomic_set(&b->pending_writebacks, 0);