diff options
Diffstat (limited to 'drivers/mailbox/mailbox.c')
| -rw-r--r-- | drivers/mailbox/mailbox.c | 23 |
1 files changed, 10 insertions, 13 deletions
diff --git a/drivers/mailbox/mailbox.c b/drivers/mailbox/mailbox.c index 118beaf447aa..0593b4d03685 100644 --- a/drivers/mailbox/mailbox.c +++ b/drivers/mailbox/mailbox.c @@ -6,18 +6,15 @@ * Author: Jassi Brar <jassisinghbrar@gmail.com> */ -#include <linux/interrupt.h> -#include <linux/spinlock.h> -#include <linux/mutex.h> #include <linux/delay.h> -#include <linux/slab.h> -#include <linux/err.h> -#include <linux/module.h> #include <linux/device.h> -#include <linux/bitops.h> +#include <linux/err.h> #include <linux/mailbox_client.h> #include <linux/mailbox_controller.h> +#include <linux/module.h> +#include <linux/mutex.h> #include <linux/of.h> +#include <linux/spinlock.h> #include "mailbox.h" @@ -413,15 +410,15 @@ struct mbox_chan *mbox_request_channel(struct mbox_client *cl, int index) return ERR_PTR(-ENODEV); } - mutex_lock(&con_mutex); - - if (of_parse_phandle_with_args(dev->of_node, "mboxes", - "#mbox-cells", index, &spec)) { + ret = of_parse_phandle_with_args(dev->of_node, "mboxes", "#mbox-cells", + index, &spec); + if (ret) { dev_dbg(dev, "%s: can't parse \"mboxes\" property\n", __func__); - mutex_unlock(&con_mutex); - return ERR_PTR(-ENODEV); + return ERR_PTR(ret); } + mutex_lock(&con_mutex); + chan = ERR_PTR(-EPROBE_DEFER); list_for_each_entry(mbox, &mbox_cons, node) if (mbox->dev->of_node == spec.np) { |