diff options
| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2021-12-16 22:30:18 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-12-29 14:28:38 +0300 |
| commit | f4321ac030b54573cde3d84d49a88d49d0fc246a (patch) | |
| tree | b9def327b67682645a4fc9b378b3fa5864b7866a /drivers/base | |
| parent | eabc0aab98e5218ceecd82069b0d6fdfff5ee885 (diff) | |
| download | linux-f4321ac030b54573cde3d84d49a88d49d0fc246a.tar.xz | |
PM: sleep: Fix error handling in dpm_prepare()
commit 544e737dea5ad1a457f25dbddf68761ff25e028b upstream.
Commit 2aa36604e824 ("PM: sleep: Avoid calling put_device() under
dpm_list_mtx") forgot to update the while () loop termination
condition to also break the loop if error is nonzero, which
causes the loop to become infinite if device_prepare() returns
an error for one device.
Add the missing !error check.
Fixes: 2aa36604e824 ("PM: sleep: Avoid calling put_device() under dpm_list_mtx")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reported-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/power/main.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c index a7fdd86fad05..6bce40e2506e 100644 --- a/drivers/base/power/main.c +++ b/drivers/base/power/main.c @@ -1906,7 +1906,7 @@ int dpm_prepare(pm_message_t state) device_block_probing(); mutex_lock(&dpm_list_mtx); - while (!list_empty(&dpm_list)) { + while (!list_empty(&dpm_list) && !error) { struct device *dev = to_device(dpm_list.next); get_device(dev); |