[PATCH 1/4] V4L: Int if: v4l2_int_device_try_attach_all requires mutex

[Sakari Ailus]

From: Sakari Ailus <sakari.ai...@nokia.com>

Signed-off-by: Sakari Ailus <sakari.ai...@nokia.com>
---
 drivers/media/video/v4l2-int-device.c |   12 ++++++++++--
 1 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/media/video/v4l2-int-device.c 
b/drivers/media/video/v4l2-int-device.c
index a935bae..eb8dc84 100644
--- a/drivers/media/video/v4l2-int-device.c
+++ b/drivers/media/video/v4l2-int-device.c
@@ -32,7 +32,7 @@
 static DEFINE_MUTEX(mutex);
 static LIST_HEAD(int_list);
 
-void v4l2_int_device_try_attach_all(void)
+static void __v4l2_int_device_try_attach_all(void)
 {
        struct v4l2_int_device *m, *s;
 
@@ -66,6 +66,14 @@ void v4l2_int_device_try_attach_all(void)
                }
        }
 }
+
+void v4l2_int_device_try_attach_all(void)
+{
+       mutex_lock(&mutex);
+       __v4l2_int_device_try_attach_all();
+       mutex_unlock(&mutex);
+}
+
 EXPORT_SYMBOL_GPL(v4l2_int_device_try_attach_all);
 
 static int ioctl_sort_cmp(const void *a, const void *b)
@@ -89,7 +97,7 @@ int v4l2_int_device_register(struct v4l2_int_device *d)
                     &ioctl_sort_cmp, NULL);
        mutex_lock(&mutex);
        list_add(&d->head, &int_list);
-       v4l2_int_device_try_attach_all();
+       __v4l2_int_device_try_attach_all();
        mutex_unlock(&mutex);
 
        return 0;
-- 
1.5.6.5

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