diff options
| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2023-04-20 05:47:57 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@kernel.org> | 2023-06-09 15:11:57 +0200 |
| commit | 102df33eba00a0af226279b8da244af85cf47a39 (patch) | |
| tree | 8f99a86cd287c3f2754bb6a8de18ae9fa934e4d0 /drivers/media/usb | |
| parent | media: uvcvideo: Constify formats, frames and intervals (diff) | |
| download | linux-102df33eba00a0af226279b8da244af85cf47a39.tar.xz linux-102df33eba00a0af226279b8da244af85cf47a39.zip | |
media: uvcvideo: Constify descriptor buffers
There is no need to modify the content of UVC descriptor buffers during
parsing. Make all the corresponding pointers const to avoid unintended
modifications.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'drivers/media/usb')
| -rw-r--r-- | drivers/media/usb/uvc/uvc_driver.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c index 1f40f92b79b7..08fcd2ffa727 100644 --- a/drivers/media/usb/uvc/uvc_driver.c +++ b/drivers/media/usb/uvc/uvc_driver.c @@ -221,7 +221,7 @@ static struct uvc_streaming *uvc_stream_new(struct uvc_device *dev, static int uvc_parse_format(struct uvc_device *dev, struct uvc_streaming *streaming, struct uvc_format *format, - struct uvc_frame *frames, u32 **intervals, unsigned char *buffer, + struct uvc_frame *frames, u32 **intervals, const unsigned char *buffer, int buflen) { struct usb_interface *intf = streaming->intf; @@ -513,7 +513,7 @@ static int uvc_parse_streaming(struct uvc_device *dev, struct uvc_format *format; struct uvc_frame *frame; struct usb_host_interface *alts = &intf->altsetting[0]; - unsigned char *_buffer, *buffer = alts->extra; + const unsigned char *_buffer, *buffer = alts->extra; int _buflen, buflen = alts->extralen; unsigned int nformats = 0, nframes = 0, nintervals = 0; unsigned int size, i, n, p; @@ -1166,7 +1166,7 @@ static int uvc_parse_standard_control(struct uvc_device *dev, static int uvc_parse_control(struct uvc_device *dev) { struct usb_host_interface *alts = dev->intf->cur_altsetting; - unsigned char *buffer = alts->extra; + const unsigned char *buffer = alts->extra; int buflen = alts->extralen; int ret; |