[1/4] tm6000: bugfix incorrect size

Commit Message

Stefan Ringel May 19, 2010, 4:58 p.m. UTC

None

Patch

diff --git a/drivers/staging/tm6000/tm6000-video.c b/drivers/staging/tm6000/tm6000-video.c
index 9554472..e5f8b57 100644
--- a/drivers/staging/tm6000/tm6000-video.c
+++ b/drivers/staging/tm6000/tm6000-video.c
@@ -205,7 +205,11 @@  static int copy_packet(struct urb *urb, u32 header, u8 **ptr, u8 *endp,
 		c = (header >> 24) & 0xff;
 
 		/* split the header fields */
-		size  = (((header & 0x7e) << 1) -1) *4;
+		size  = ((header & 0x7e) << 1);
+
+		if (size > 0)
+			size -= 4;
+
 		block = (header >> 7) & 0xf;
 		field = (header >> 11) & 0x1;
 		line  = (header >> 12) & 0x1ff;