[PATCH] cdrom: buffer sizing fix

The problem is that some drives fail the "GET CONFIGURATION" command when
asked to only return 8 bytes.  This happens for example on my drive, which
is identified as:

        hdc: HL-DT-ST DVD+RW GCA-4040N, ATAPI CD/DVD-ROM drive

Since the cdrom_mmc3_profile() function already allocates 32 bytes for the
reply buffer, this patch is enough to make the command succeed on my drive.
Signed-off-by: Peter Osterlund <petero2@telia.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/cdrom/cdrom.c

@@ -865,7 +865,7 @@ static void cdrom_mmc3_profile(struct cdrom_device_info *cdi)
 	cgc.cmd[0] = GPCMD_GET_CONFIGURATION;
 	cgc.cmd[1] = 0;
 	cgc.cmd[2] = cgc.cmd[3] = 0;		/* Starting Feature Number */
-	cgc.cmd[7] = 0; cgc.cmd [8] = 8;	/* Allocation Length */
+	cgc.cmd[8] = sizeof(buffer);		/* Allocation Length */
 	cgc.quiet = 1;
 
 	if ((ret = cdi->ops->generic_packet(cdi, &cgc))) {