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Diffstat (limited to 'drivers/media/video/usbvideo/usbvideo.c')
| -rw-r--r-- | drivers/media/video/usbvideo/usbvideo.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/drivers/media/video/usbvideo/usbvideo.c b/drivers/media/video/usbvideo/usbvideo.c index 5ac37c6c4313..f1fcf9744961 100644 --- a/drivers/media/video/usbvideo/usbvideo.c +++ b/drivers/media/video/usbvideo/usbvideo.c @@ -282,19 +282,15 @@ static void usbvideo_OverlayChar(struct uvd *uvd, struct usbvideo_frame *frame, }; unsigned short digit; int ix, iy; + int value; if ((uvd == NULL) || (frame == NULL)) return; - if (ch >= '0' && ch <= '9') - ch -= '0'; - else if (ch >= 'A' && ch <= 'F') - ch = 10 + (ch - 'A'); - else if (ch >= 'a' && ch <= 'f') - ch = 10 + (ch - 'a'); - else + value = hex_to_bin(ch); + if (value < 0) return; - digit = digits[ch]; + digit = digits[value]; for (iy=0; iy < 5; iy++) { for (ix=0; ix < 3; ix++) { |