V4L/DVB (4970): Usbvision memory fixes

- fix decompression buffer allocation not done at first driver open
- simplification of USB sbuf allocation (use of usb_buffer_alloc)
- replaced vmalloc by vmalloc_32 (for homogeneity)
- add of saa7111 (i2cAddr=0x48) detection printout in attach_inform

Signed-off-by: Thierry MERLE <thierry.merle@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 4 insertions, 10 deletions

diff --git a/drivers/media/video/usbvision/usbvision-video.c b/drivers/media/video/usbvision/usbvision-video.c
index b77e25ea883..31b133ef069 100644
--- a/drivers/media/video/usbvision/usbvision-video.c
+++ b/drivers/media/video/usbvision/usbvision-video.c
@@ -353,20 +353,15 @@ static int usbvision_v4l2_open(struct inode *inode, struct file *file)
 		if(!errCode) {
 			/* Allocate memory for the scratch ring buffer */
 			errCode = usbvision_scratch_alloc(usbvision);
-			if(!errCode) {
-				/* Allocate memory for the USB S buffers */
-				errCode = usbvision_sbuf_alloc(usbvision);
-				if ((!errCode) && (usbvision->isocMode==ISOC_MODE_COMPRESS)) {
-					/* Allocate intermediate decompression buffers only if needed */
-					errCode = usbvision_decompress_alloc(usbvision);
-				}
+			if ((!errCode) && (isocMode==ISOC_MODE_COMPRESS)) {
+				/* Allocate intermediate decompression buffers only if needed */
+				errCode = usbvision_decompress_alloc(usbvision);
 			}
 		}
 		if (errCode) {
 			/* Deallocate all buffers if trouble */
 			usbvision_frames_free(usbvision);
 			usbvision_scratch_free(usbvision);
-			usbvision_sbuf_free(usbvision);
 			usbvision_decompress_free(usbvision);
 		}
 	}
@@ -437,9 +432,8 @@ static int usbvision_v4l2_close(struct inode *inode, struct file *file)
 	usbvision_stop_isoc(usbvision);
 
 	usbvision_decompress_free(usbvision);
-	usbvision_rvfree(usbvision->fbuf, usbvision->fbuf_size);
+	usbvision_frames_free(usbvision);
 	usbvision_scratch_free(usbvision);
-	usbvision_sbuf_free(usbvision);
 
 	usbvision->user--;