From b17d39453b40730cbfdb2cab9565f8ba8627b7f8 Mon Sep 17 00:00:00 2001 From: Nicolas THERY Date: Tue, 7 Aug 2012 05:24:59 -0300 Subject: [PATCH] [media] media: fix MEDIA_IOC_DEVICE_INFO return code The MEDIA_IOC_DEVICE_INFO ioctl was returning a positive value rather than a negative error code when failing to copy output parameter to user-space. Tested by compilation only. Signed-off-by: Nicolas Thery Signed-off-by: Mauro Carvalho Chehab --- drivers/media/media-device.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/media/media-device.c b/drivers/media/media-device.c index 6f9eb94e85b3..d01fcb7e87c2 100644 --- a/drivers/media/media-device.c +++ b/drivers/media/media-device.c @@ -59,7 +59,9 @@ static int media_device_get_info(struct media_device *dev, info.hw_revision = dev->hw_revision; info.driver_version = dev->driver_version; - return copy_to_user(__info, &info, sizeof(*__info)); + if (copy_to_user(__info, &info, sizeof(*__info))) + return -EFAULT; + return 0; } static struct media_entity *find_entity(struct media_device *mdev, u32 id)