diff options
| author |   Maxime Ripard <mripard@kernel.org> | 2019-10-03 09:59:29 +0200 |
|---|---|---|
| committer | Maxime Ripard <mripard@kernel.org> | 2019-10-03 09:59:29 +0200 |
| commit | 77fdaa091d79c87323a9f3912a25f73e02ea2a01 (patch) | |
| tree | 0e47e2d3c4a966277dbaec075f4685187fdae482 /drivers/media/usb/hdpvr/hdpvr-core.c | |
| parent | drm/omap: fix max fclk divider for omap36xx (diff) | |
| parent | Linux 5.4-rc1 (diff) | |
| download | linux-dev-77fdaa091d79c87323a9f3912a25f73e02ea2a01.tar.xz linux-dev-77fdaa091d79c87323a9f3912a25f73e02ea2a01.zip | |
Merge drm/drm-fixes into drm-misc-fixes
We haven't backmerged for a while, let's start the -rc period by pulling
rc1.
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Diffstat (limited to 'drivers/media/usb/hdpvr/hdpvr-core.c')
| -rw-r--r-- | drivers/media/usb/hdpvr/hdpvr-core.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/media/usb/hdpvr/hdpvr-core.c b/drivers/media/usb/hdpvr/hdpvr-core.c index 9b9d894d29bc..b75c18a012a7 100644 --- a/drivers/media/usb/hdpvr/hdpvr-core.c +++ b/drivers/media/usb/hdpvr/hdpvr-core.c @@ -137,6 +137,7 @@ static int device_authorization(struct hdpvr_device *dev) dev->fw_ver = dev->usbc_buf[1]; + dev->usbc_buf[46] = '\0'; v4l2_info(&dev->v4l2_dev, "firmware version 0x%x dated %s\n", dev->fw_ver, &dev->usbc_buf[2]); @@ -271,6 +272,7 @@ static int hdpvr_probe(struct usb_interface *interface, #endif size_t buffer_size; int i; + int dev_num; int retval = -ENOMEM; /* allocate memory for our device state and initialize it */ @@ -368,8 +370,17 @@ static int hdpvr_probe(struct usb_interface *interface, } #endif + dev_num = atomic_inc_return(&dev_nr); + if (dev_num >= HDPVR_MAX) { + v4l2_err(&dev->v4l2_dev, + "max device number reached, device register failed\n"); + atomic_dec(&dev_nr); + retval = -ENODEV; + goto reg_fail; + } + retval = hdpvr_register_videodev(dev, &interface->dev, - video_nr[atomic_inc_return(&dev_nr)]); + video_nr[dev_num]); if (retval < 0) { v4l2_err(&dev->v4l2_dev, "registering videodev failed\n"); goto reg_fail; |