The bail out branch in case of a invalid tx_pos missed a semaphore
release. Dan Carpenter found this with a static checker.
Fixes: d1eab9dec610 ("staging: vchiq_core: Bail out in case of invalid tx_pos")
Reported-by: Dan Carpenter <[email protected]>
Signed-off-by: Stefan Wahren <[email protected]>
---
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c
b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c
index 5d28fff..80f6168 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c
@@ -601,6 +601,7 @@ reserve_space(VCHIQ_STATE_T *state, size_t space, int
is_blocking)
}
if (tx_pos == (state->slot_queue_available * VCHIQ_SLOT_SIZE)) {
+ up(&state->slot_available_event);
pr_warn("%s: invalid tx_pos: %d\n", __func__, tx_pos);
return NULL;
}
--
2.7.4
_______________________________________________
devel mailing list
[email protected]
http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
