From dd00cc486ab1c17049a535413d1751ef3482141c Mon Sep 17 00:00:00 2001 From: Yoann Padioleau Date: Thu, 19 Jul 2007 01:49:03 -0700 Subject: some kmalloc/memset ->kzalloc (tree wide) Transform some calls to kmalloc/memset to a single kzalloc (or kcalloc). Here is a short excerpt of the semantic patch performing this transformation: @@ type T2; expression x; identifier f,fld; expression E; expression E1,E2; expression e1,e2,e3,y; statement S; @@ x = - kmalloc + kzalloc (E1,E2) ... when != \(x->fld=E;\|y=f(...,x,...);\|f(...,x,...);\|x=E;\|while(...) S\|for(e1;e2;e3) S\) - memset((T2)x,0,E1); @@ expression E1,E2,E3; @@ - kzalloc(E1 * E2,E3) + kcalloc(E1,E2,E3) [akpm@linux-foundation.org: get kcalloc args the right way around] Signed-off-by: Yoann Padioleau Cc: Richard Henderson Cc: Ivan Kokshaysky Acked-by: Russell King Cc: Bryan Wu Acked-by: Jiri Slaby Cc: Dave Airlie Acked-by: Roland Dreier Cc: Jiri Kosina Acked-by: Dmitry Torokhov Cc: Benjamin Herrenschmidt Acked-by: Mauro Carvalho Chehab Acked-by: Pierre Ossman Cc: Jeff Garzik Cc: "David S. Miller" Acked-by: Greg KH Cc: James Bottomley Cc: "Antonino A. Daplas" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- block/scsi_ioctl.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'block') diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c index a26ba07955f..71bdf88884b 100644 --- a/block/scsi_ioctl.c +++ b/block/scsi_ioctl.c @@ -436,11 +436,10 @@ int sg_scsi_ioctl(struct file *file, struct request_queue *q, bytes = max(in_len, out_len); if (bytes) { - buffer = kmalloc(bytes, q->bounce_gfp | GFP_USER| __GFP_NOWARN); + buffer = kzalloc(bytes, q->bounce_gfp | GFP_USER| __GFP_NOWARN); if (!buffer) return -ENOMEM; - memset(buffer, 0, bytes); } rq = blk_get_request(q, in_len ? WRITE : READ, __GFP_WAIT); -- cgit v1.2.3