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Commit 569a89ad authored by Linux Build Service Account's avatar Linux Build Service Account Committed by Gerrit - the friendly Code Review server
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Merge "block: prevent access to NULL pointer in req->part"

parents 0d6d19b7 f97d4f61

block/blk-core.c

+7 −3
Original line number Diff line number Diff line
@@ -2099,8 +2099,11 @@ static void blk_account_io_completion(struct request *req, unsigned int bytes) 
		struct hd_struct *part;

		int cpu;



		cpu = part_stat_lock();

		part = req->part;

		if (!part)

			return;



		cpu = part_stat_lock();

		part_stat_add(cpu, part, sectors[rw], bytes >> 9);

		part_stat_unlock();

	}
@@ -2119,14 +2122,15 @@ static void blk_account_io_done(struct request *req) 
		struct hd_struct *part;

		int cpu;



		cpu = part_stat_lock();

		part = req->part;

		if (!req->part)

			return;



		cpu = part_stat_lock();

		part_stat_inc(cpu, part, ios[rw]);

		part_stat_add(cpu, part, ticks[rw], duration);

		part_round_stats(cpu, part);

		part_dec_in_flight(part, rw);



		hd_struct_put(part);

		part_stat_unlock();

	}