aty: use memory_read_from_buffer()
authorAkinobu Mita <akinobu.mita@gmail.com>
Thu, 24 Jul 2008 04:31:33 +0000 (21:31 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 24 Jul 2008 17:47:39 +0000 (10:47 -0700)
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/video/aty/radeon_base.c

index 3c0a03f69d83617ae3bd1e3683cd4a9f988ca7dd..652273e9f5f9223fc80261d035c114765ea59f71 100644 (file)
@@ -2098,15 +2098,7 @@ static void radeon_identify_vram(struct radeonfb_info *rinfo)
 
 static ssize_t radeon_show_one_edid(char *buf, loff_t off, size_t count, const u8 *edid)
 {
-       if (off > EDID_LENGTH)
-               return 0;
-
-       if (off + count > EDID_LENGTH)
-               count = EDID_LENGTH - off;
-
-       memcpy(buf, edid + off, count);
-
-       return count;
+       return memory_read_from_buffer(buf, count, &off, edid, EDID_LENGTH);
 }