Allocate 96 bytes for SCSI sense data reply

The SCSI layer uses SCSI_SENSE_BUFFERSIZE (96) for the sense buffer
size, even though some other code uses "sizeof(struct request_sense)"
(which is 64 bytes).  Allocate the buffer using the bigger of the two
for safety.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/drivers/scsi/sr_ioctl.c b/drivers/scsi/sr_ioctl.c
index 5d02ff4..b65462f 100644 (file)
--- a/drivers/scsi/sr_ioctl.c
+++ b/drivers/scsi/sr_ioctl.c
@@ -192,7 +192,7 @@ int sr_do_ioctl(Scsi_CD *cd, struct packet_command *cgc)
        SDev = cd->device;
 
        if (!sense) {
-               sense = kmalloc(sizeof(*sense), GFP_KERNEL);
+               sense = kmalloc(SCSI_SENSE_BUFFERSIZE, GFP_KERNEL);
                if (!sense) {
                        err = -ENOMEM;
                        goto out;