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Commit b786c6a9 authored by Jiri Slaby's avatar Jiri Slaby Committed by Ingo Molnar
Browse files

relay: fix lock imbalance in relay_late_setup_files 



One fail path in relay_late_setup_files() omits
mutex_unlock(&relay_channels_mutex);
Add it.

Signed-off-by: default avatarJiri Slaby <jirislaby@gmail.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent fdb6a8f4

kernel/relay.c

+3 −1
Original line number Original line Diff line number Diff line
@@ -663,8 +663,10 @@ int relay_late_setup_files(struct rchan *chan, 




	mutex_lock(&relay_channels_mutex);

	mutex_lock(&relay_channels_mutex);

	/* Is chan already set up? */

	/* Is chan already set up? */

	if (unlikely(chan->has_base_filename))

	if (unlikely(chan->has_base_filename)) {

		mutex_unlock(&relay_channels_mutex);

		return -EEXIST;

		return -EEXIST;

	}

	chan->has_base_filename = 1;

	chan->has_base_filename = 1;

	chan->parent = parent;

	chan->parent = parent;

	curr_cpu = get_cpu();

	curr_cpu = get_cpu();