diff options
| author | Alexey Klimov <klimov.linux@gmail.com> | 2009-02-05 13:00:03 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-03-30 17:42:40 +0200 |
| commit | e57458dc7086bac9e05b6fc6d5ab336de1647c12 (patch) | |
| tree | 2517fe5d8f2662e2585e5752f42958d10778ee2b /drivers/media/radio | |
| parent | V4L/DVB (10462): radio-mr800: increase version and add comments (diff) | |
| download | linux-e57458dc7086bac9e05b6fc6d5ab336de1647c12.tar.xz linux-e57458dc7086bac9e05b6fc6d5ab336de1647c12.zip | |
V4L/DVB (10463): radio-mr800: fix checking of retval after usb_bulk_msg
Patch corrects checking of returned value after usb_bulk_msg. Now we
also check if number of transferred bytes equals to BUFFER_LENGTH.
Signed-off-by: Alexey Klimov <klimov.linux@gmail.com>
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/radio')
| -rw-r--r-- | drivers/media/radio/radio-mr800.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/media/radio/radio-mr800.c b/drivers/media/radio/radio-mr800.c index 23c3c539157b..ded25bfb366e 100644 --- a/drivers/media/radio/radio-mr800.c +++ b/drivers/media/radio/radio-mr800.c @@ -214,7 +214,7 @@ static int amradio_set_mute(struct amradio_device *radio, char argument) retval = usb_bulk_msg(radio->usbdev, usb_sndintpipe(radio->usbdev, 2), (void *) (radio->buffer), BUFFER_LENGTH, &size, USB_TIMEOUT); - if (retval) { + if (retval < 0 || size != BUFFER_LENGTH) { mutex_unlock(&radio->lock); return retval; } @@ -251,7 +251,7 @@ static int amradio_setfreq(struct amradio_device *radio, int freq) retval = usb_bulk_msg(radio->usbdev, usb_sndintpipe(radio->usbdev, 2), (void *) (radio->buffer), BUFFER_LENGTH, &size, USB_TIMEOUT); - if (retval) { + if (retval < 0 || size != BUFFER_LENGTH) { mutex_unlock(&radio->lock); return retval; } @@ -268,7 +268,7 @@ static int amradio_setfreq(struct amradio_device *radio, int freq) retval = usb_bulk_msg(radio->usbdev, usb_sndintpipe(radio->usbdev, 2), (void *) (radio->buffer), BUFFER_LENGTH, &size, USB_TIMEOUT); - if (retval) { + if (retval < 0 || size != BUFFER_LENGTH) { mutex_unlock(&radio->lock); return retval; } |