diff options
| author | Ibai Erkiaga <ibai.erkiaga-elorza@xilinx.com> | 2019-09-27 11:36:54 +0100 |
|---|---|---|
| committer | Michal Simek <michal.simek@xilinx.com> | 2019-10-08 09:55:11 +0200 |
| commit | 22673b4d53fc5ad82f632d6cdaae2950190ef214 (patch) | |
| tree | 145b9491cb997dfc8be6e0196f451451776405e0 /drivers/mailbox | |
| parent | ff1b0da4edfe58c08055816f34337e375dfff486 (diff) | |
mailbox: check ops prior calling
Check if request and free operations are present prior calling to the
functions.
Signed-off-by: Ibai Erkiaga <ibai.erkiaga-elorza@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Diffstat (limited to 'drivers/mailbox')
| -rw-r--r-- | drivers/mailbox/mailbox-uclass.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/mailbox/mailbox-uclass.c b/drivers/mailbox/mailbox-uclass.c index 1b4a5863c9..809f26b202 100644 --- a/drivers/mailbox/mailbox-uclass.c +++ b/drivers/mailbox/mailbox-uclass.c @@ -63,7 +63,8 @@ int mbox_get_by_index(struct udevice *dev, int index, struct mbox_chan *chan) return ret; } - ret = ops->request(chan); + if (ops->request) + ret = ops->request(chan); if (ret) { debug("ops->request() failed: %d\n", ret); return ret; @@ -94,7 +95,10 @@ int mbox_free(struct mbox_chan *chan) debug("%s(chan=%p)\n", __func__, chan); - return ops->free(chan); + if (ops->free) + return ops->free(chan); + + return 0; } int mbox_send(struct mbox_chan *chan, const void *data) |