diff options
| author | Tzung-Bi Shih <tzungbi@kernel.org> | 2026-05-05 05:34:03 +0000 |
|---|---|---|
| committer | Tzung-Bi Shih <tzungbi@kernel.org> | 2026-05-06 02:14:33 +0000 |
| commit | 525cb7ba6661074c1c5cc3772bccc6afab6791ef (patch) | |
| tree | bae345d5a4c614c7b536aec7897190a656a5f8fc | |
| parent | 168e4b208ca8c2e04de20cc6cb7e2fb035dc1ec8 (diff) | |
platform/chrome: cros_ec_typec: Init mutex in Thunderbolt registration
cros_typec_register_thunderbolt() missed initializing the `adata->lock`
mutex. This leads to a NULL dereference when the mutex is later
acquired (e.g. in cros_typec_altmode_work()).
Initialize the mutex in cros_typec_register_thunderbolt() to fix the
issue.
Cc: stable@vger.kernel.org
Fixes: 3b00be26b16a ("platform/chrome: cros_ec_typec: Thunderbolt support")
Reviewed-by: Benson Leung <bleung@chromium.org>
Reviewed-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Link: https://lore.kernel.org/r/20260505053403.3335740-1-tzungbi@kernel.org
Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
| -rw-r--r-- | drivers/platform/chrome/cros_typec_altmode.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/platform/chrome/cros_typec_altmode.c b/drivers/platform/chrome/cros_typec_altmode.c index 557340b53af0..66c546bf89b5 100644 --- a/drivers/platform/chrome/cros_typec_altmode.c +++ b/drivers/platform/chrome/cros_typec_altmode.c @@ -359,6 +359,7 @@ cros_typec_register_thunderbolt(struct cros_typec_port *port, } INIT_WORK(&adata->work, cros_typec_altmode_work); + mutex_init(&adata->lock); adata->alt = alt; adata->port = port; adata->ap_mode_entry = true; |