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usb: typec: ucsi: displayport: Fix NULL pointer access

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commit 312d79669e71283d05c05cc49a1a31e59e3d9e0e upstream.

This patch ensures that the UCSI driver waits for all pending tasks in the
ucsi_displayport_work workqueue to finish executing before proceeding with
the partner removal.

Cc: stable <stable@kernel.org>
Fixes: af8622f6a5 ("usb: typec: ucsi: Support for DisplayPort alt mode")
Signed-off-by: Andrei Kuchynski <akuchynski@chromium.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Benson Leung <bleung@chromium.org>
Link: https://lore.kernel.org/r/20250424084429.3220757-3-akuchynski@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Andrei Kuchynski
2025-04-24 08:44:29 +00:00
committed by Greg Kroah-Hartman
parent c9d8b0932e
commit 14f298c521
1 changed files with 2 additions and 0 deletions
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2
drivers/usb/typec/ucsi/displayport.c
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@@ -296,6 +296,8 @@ void ucsi_displayport_remove_partner(struct typec_altmode *alt)
if (!dp)
return;
cancel_work_sync(&dp->work);
dp->data.conf = 0;
dp->data.status = 0;
dp->initialized = false;