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(parent: fba704b) | patch
block, bfq: use pointer entity->sched_data only if set
authorPaolo Valente <[email protected]>
Tue, 9 May 2017 09:37:27 +0000 (11:37 +0200)
committerJens Axboe <[email protected]>
Wed, 10 May 2017 13:39:43 +0000 (07:39 -0600)
commita66c38a171ed25488debf80247a9e72e1026e82c
tree52c407a83f2706d34e5ced556903bcb5939265dctree | snapshot
parentfba704b494fdc6816a039a66887274b4e5c00eebcommit | diff
block, bfq: use pointer entity->sched_data only if set

In the function __bfq_deactivate_entity, the pointer
entity->sched_data could happen to be used before being properly
initialized. This led to a NULL pointer dereference. This commit fixes
this bug by just using this pointer only where it is safe to do so.

Reported-by: Tom Harrison <[email protected]>
Tested-by: Tom Harrison <[email protected]>
Signed-off-by: Paolo Valente <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
block/bfq-wf2q.c diff | blob | history
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