From: Dan Carpenter <dan.carpenter@oracle.com>
To: Mauro Carvalho Chehab <mchehab@kernel.org>,
Eric Anholt <eric@anholt.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Stephen Warren <swarren@wwwdotorg.org>,
Lee Jones <lee@kernel.org>,
Florian Fainelli <f.fainelli@gmail.com>,
Ray Jui <rjui@broadcom.com>,
Scott Branden <sbranden@broadcom.com>,
bcm-kernel-feedback-list@broadcom.com,
Michael Zoran <mzoran@crowfest.net>,
linux-media@vger.kernel.org, devel@driverdev.osuosl.org,
linux-rpi-kernel@lists.infradead.org,
kernel-janitors@vger.kernel.org
Subject: [patch] staging: bcm2835/mmal-vchiq: unlock on error in buffer_from_host()
Date: Fri, 17 Feb 2017 23:20:36 +0000 [thread overview]
Message-ID: <20170217232035.GB26717@mwanda> (raw)
We should unlock before returning on this error path.
Fixes: 7b3ad5abf027 ("staging: Import the BCM2835 MMAL-based V4L2 camera driver.")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
diff --git a/drivers/staging/media/platform/bcm2835/mmal-vchiq.c b/drivers/staging/media/platform/bcm2835/mmal-vchiq.c
index f0639ee6c8b9..fdfb6a620a43 100644
--- a/drivers/staging/media/platform/bcm2835/mmal-vchiq.c
+++ b/drivers/staging/media/platform/bcm2835/mmal-vchiq.c
@@ -397,8 +397,10 @@ buffer_from_host(struct vchiq_mmal_instance *instance,
/* get context */
msg_context = get_msg_context(instance);
- if (msg_context = NULL)
- return -ENOMEM;
+ if (!msg_context) {
+ ret = -ENOMEM;
+ goto unlock;
+ }
/* store bulk message context for when data arrives */
msg_context->u.bulk.instance = instance;
@@ -454,6 +456,7 @@ buffer_from_host(struct vchiq_mmal_instance *instance,
vchi_service_release(instance->handle);
+unlock:
mutex_unlock(&instance->bulk_mutex);
return ret;
reply other threads:[~2017-02-17 23:20 UTC|newest]
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