diff options
Diffstat (limited to 'drivers/media/usb/pwc/pwc-ctrl.c')
| -rw-r--r-- | drivers/media/usb/pwc/pwc-ctrl.c | 31 |
1 files changed, 10 insertions, 21 deletions
diff --git a/drivers/media/usb/pwc/pwc-ctrl.c b/drivers/media/usb/pwc/pwc-ctrl.c index 655cef39eb3d..315c55927f5c 100644 --- a/drivers/media/usb/pwc/pwc-ctrl.c +++ b/drivers/media/usb/pwc/pwc-ctrl.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* Driver for Philips webcam Functions that send various control messages to the webcam, including video modes. @@ -15,19 +16,6 @@ The decompression routines have been implemented by reverse-engineering the Nemosoft binary pwcx module. Caveat emptor. - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ /* @@ -242,14 +230,14 @@ static int set_video_mode_Timon(struct pwc_device *pdev, int size, int pixfmt, fps = (frames / 5) - 1; /* Find a supported framerate with progressively higher compression */ - pChoose = NULL; - while (*compression <= 3) { + do { pChoose = &Timon_table[size][fps][*compression]; if (pChoose->alternate != 0) break; (*compression)++; - } - if (pChoose == NULL || pChoose->alternate == 0) + } while (*compression <= 3); + + if (pChoose->alternate == 0) return -ENOENT; /* Not supported. */ if (send_to_cam) @@ -279,7 +267,7 @@ static int set_video_mode_Timon(struct pwc_device *pdev, int size, int pixfmt, static int set_video_mode_Kiara(struct pwc_device *pdev, int size, int pixfmt, int frames, int *compression, int send_to_cam) { - const struct Kiara_table_entry *pChoose = NULL; + const struct Kiara_table_entry *pChoose; int fps, ret = 0; if (size >= PSZ_MAX || *compression < 0 || *compression > 3) @@ -293,13 +281,14 @@ static int set_video_mode_Kiara(struct pwc_device *pdev, int size, int pixfmt, fps = (frames / 5) - 1; /* Find a supported framerate with progressively higher compression */ - while (*compression <= 3) { + do { pChoose = &Kiara_table[size][fps][*compression]; if (pChoose->alternate != 0) break; (*compression)++; - } - if (pChoose == NULL || pChoose->alternate == 0) + } while (*compression <= 3); + + if (pChoose->alternate == 0) return -ENOENT; /* Not supported. */ /* Firmware bug: video endpoint is 5, but commands are sent to endpoint 4 */ |