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| author | Tvrtko Ursulin <tvrtko.ursulin@intel.com> | 2022-10-03 17:04:02 +0100 |
|---|---|---|
| committer | Tvrtko Ursulin <tvrtko.ursulin@intel.com> | 2022-10-03 17:04:02 +0100 |
| commit | 97acb6a8fcc4e5c2cdc2693a35acdc5a7461aaa3 (patch) | |
| tree | c4f1a18b38d655b7806a72515992bd9aae14ef53 /drivers/hwtracing/coresight/coresight-cpu-debug.c | |
| parent | 6fa964c045a6bc3321a9186e87bfbcfd1059b0f1 (diff) | |
| parent | 7860d720a84c74b2761c6b7995392a798ab0a3cb (diff) | |
| download | linux-stable-97acb6a8fcc4e5c2cdc2693a35acdc5a7461aaa3.tar.gz linux-stable-97acb6a8fcc4e5c2cdc2693a35acdc5a7461aaa3.tar.bz2 linux-stable-97acb6a8fcc4e5c2cdc2693a35acdc5a7461aaa3.zip | |
Merge drm/drm-next into drm-intel-gt-next
Daniele needs 84d4333c1e28 ("misc/mei: Add NULL check to component match
callback functions") in order to merge the DG2 HuC patches.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Diffstat (limited to 'drivers/hwtracing/coresight/coresight-cpu-debug.c')
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-cpu-debug.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/hwtracing/coresight/coresight-cpu-debug.c b/drivers/hwtracing/coresight/coresight-cpu-debug.c index 8845ec4b4402..1874df7c6a73 100644 --- a/drivers/hwtracing/coresight/coresight-cpu-debug.c +++ b/drivers/hwtracing/coresight/coresight-cpu-debug.c @@ -380,9 +380,10 @@ static int debug_notifier_call(struct notifier_block *self, int cpu; struct debug_drvdata *drvdata; - mutex_lock(&debug_lock); + /* Bail out if we can't acquire the mutex or the functionality is off */ + if (!mutex_trylock(&debug_lock)) + return NOTIFY_DONE; - /* Bail out if the functionality is disabled */ if (!debug_enable) goto skip_dump; @@ -401,7 +402,7 @@ static int debug_notifier_call(struct notifier_block *self, skip_dump: mutex_unlock(&debug_lock); - return 0; + return NOTIFY_DONE; } static struct notifier_block debug_notifier = { |