Messages in this thread Patch in this message |  | | From | Tzung-Bi Shih <> | | Subject | [PATCH] platform/chrome: cros_ec_typec: Init mutex in Thunderbolt registration | | Date | Tue, 5 May 2026 05:34:03 +0000 |
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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") Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org> --- drivers/platform/chrome/cros_typec_altmode.c | 1 + 1 file changed, 1 insertion(+)
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; -- 2.54.0.545.g6539524ca2-goog
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