dm cache: handle kmalloc failure allocating background_tracker struct
Currently there is no kmalloc failure check on the allocation of the background_tracker struct in btracker_create(), and so a NULL return will lead to a NULL pointer dereference. Add a NULL check. Detected by CoverityScan, CID#1416587 ("Dereference null return value") Fixes: b29d4986 ("dm cache: significant rework to leverage dm-bio-prison-v2") Signed-off-by:Colin Ian King <colin.king@canonical.com> Signed-off-by:
Mike Snitzer <snitzer@redhat.com>
parent
13840d38
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