[SCSI] sg: increase sglist_len of the sg_scatter_hold structure

unsigned short is too small for sizeof(struct scatterlist) *
min(q->max_hw_segments, q->max_phys_segments).

This fixes memory leak with 4096 segments since 16 (likely sg size
with x86) * 4096 sets sglist_len to zero.

This might not happen without sg chaining support.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 85d38940a6c9..fdc6618c1f61 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -114,7 +114,7 @@ static struct class_interface sg_interface = {
 
 typedef struct sg_scatter_hold { /* holding area for scsi scatter gather info */
         unsigned short k_use_sg; /* Count of kernel scatter-gather pieces */
-        unsigned short sglist_len; /* size of malloc'd scatter-gather list ++ */
+        unsigned sglist_len; /* size of malloc'd scatter-gather list ++ */
         unsigned bufflen;       /* Size of (aggregate) data buffer */
         unsigned b_malloc_len;  /* actual len malloc'ed in buffer */
         struct scatterlist *buffer;/* scatter list */