Mailbox: Check valid registered callback before calling
This patch checks if the mailbox user has assinged a valid
callback fuction before calling it.
Signed-off-by: Fernando Guzman Lugo <x0095840@ti.com>
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
diff --git a/arch/arm/plat-omap/mailbox.c b/arch/arm/plat-omap/mailbox.c
index 77c23f5..72efbe5 100644
--- a/arch/arm/plat-omap/mailbox.c
+++ b/arch/arm/plat-omap/mailbox.c
@@ -146,7 +146,8 @@
msg = (mbox_msg_t)rq->special;
blk_end_request_all(rq, 0);
- mbox->rxq->callback((void *)msg);
+ if (mbox->rxq->callback)
+ mbox->rxq->callback((void *)msg);
}
}