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| author | Gavin Liu <gavin.liu@mediatek.com> | 2024-05-07 05:00:37 +0300 |
|---|---|---|
| committer | Jens Wiklander <jens.wiklander@linaro.org> | 2024-05-30 11:19:28 +0300 |
| commit | 14ca6401d8703725c7297dcc4bf8de73323411ac (patch) | |
| tree | c2baa9a63392a86b54c427cf9ee23ae1753c9b2e /drivers/tee/optee/notif.c | |
| parent | a38297e3fb012ddfa7ce0321a7e5a8daeb1872b6 (diff) | |
| download | linux-14ca6401d8703725c7297dcc4bf8de73323411ac.tar.xz | |
optee: add timeout value to optee_notif_wait() to support timeout
Add timeout value to support self waking when timeout to avoid waiting
indefinitely.
Signed-off-by: Gavin Liu <gavin.liu@mediatek.com>
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Diffstat (limited to 'drivers/tee/optee/notif.c')
| -rw-r--r-- | drivers/tee/optee/notif.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/tee/optee/notif.c b/drivers/tee/optee/notif.c index 05212842b0a5..d5e5c0645609 100644 --- a/drivers/tee/optee/notif.c +++ b/drivers/tee/optee/notif.c @@ -29,7 +29,7 @@ static bool have_key(struct optee *optee, u_int key) return false; } -int optee_notif_wait(struct optee *optee, u_int key) +int optee_notif_wait(struct optee *optee, u_int key, u32 timeout) { unsigned long flags; struct notif_entry *entry; @@ -70,7 +70,12 @@ int optee_notif_wait(struct optee *optee, u_int key) * Unlock temporarily and wait for completion. */ spin_unlock_irqrestore(&optee->notif.lock, flags); - wait_for_completion(&entry->c); + if (timeout != 0) { + if (!wait_for_completion_timeout(&entry->c, timeout)) + rc = -ETIMEDOUT; + } else { + wait_for_completion(&entry->c); + } spin_lock_irqsave(&optee->notif.lock, flags); list_del(&entry->link); |