From dd00cc486ab1c17049a535413d1751ef3482141c Mon Sep 17 00:00:00 2001 From: Yoann Padioleau <padator@wanadoo.fr> 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 <padator@wanadoo.fr> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Acked-by: Russell King <rmk@arm.linux.org.uk> Cc: Bryan Wu <bryan.wu@analog.com> Acked-by: Jiri Slaby <jirislaby@gmail.com> Cc: Dave Airlie <airlied@linux.ie> Acked-by: Roland Dreier <rolandd@cisco.com> Cc: Jiri Kosina <jkosina@suse.cz> Acked-by: Dmitry Torokhov <dtor@mail.ru> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org> Acked-by: Pierre Ossman <drzeus-list@drzeus.cx> Cc: Jeff Garzik <jeff@garzik.org> Cc: "David S. Miller" <davem@davemloft.net> Acked-by: Greg KH <greg@kroah.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> --- drivers/char/rio/rio_linux.c | 4 +--- drivers/char/rio/riocmd.c | 4 +--- drivers/char/rio/riotable.c | 3 +-- 3 files changed, 3 insertions(+), 8 deletions(-) (limited to 'drivers/char/rio') diff --git a/drivers/char/rio/rio_linux.c b/drivers/char/rio/rio_linux.c index 294e9cb0c449..0ce96670f979 100644 --- a/drivers/char/rio/rio_linux.c +++ b/drivers/char/rio/rio_linux.c @@ -803,9 +803,7 @@ static void *ckmalloc(int size) { void *p; - p = kmalloc(size, GFP_KERNEL); - if (p) - memset(p, 0, size); + p = kzalloc(size, GFP_KERNEL); return p; } diff --git a/drivers/char/rio/riocmd.c b/drivers/char/rio/riocmd.c index 8cc60b693460..7321d002c34f 100644 --- a/drivers/char/rio/riocmd.c +++ b/drivers/char/rio/riocmd.c @@ -556,9 +556,7 @@ struct CmdBlk *RIOGetCmdBlk(void) { struct CmdBlk *CmdBlkP; - CmdBlkP = kmalloc(sizeof(struct CmdBlk), GFP_ATOMIC); - if (CmdBlkP) - memset(CmdBlkP, 0, sizeof(struct CmdBlk)); + CmdBlkP = kzalloc(sizeof(struct CmdBlk), GFP_ATOMIC); return CmdBlkP; } diff --git a/drivers/char/rio/riotable.c b/drivers/char/rio/riotable.c index 7e988357326e..991119c9f473 100644 --- a/drivers/char/rio/riotable.c +++ b/drivers/char/rio/riotable.c @@ -863,8 +863,7 @@ int RIOReMapPorts(struct rio_info *p, struct Host *HostP, struct Map *HostMapP) if (PortP->TxRingBuffer) memset(PortP->TxRingBuffer, 0, p->RIOBufferSize); else if (p->RIOBufferSize) { - PortP->TxRingBuffer = kmalloc(p->RIOBufferSize, GFP_KERNEL); - memset(PortP->TxRingBuffer, 0, p->RIOBufferSize); + PortP->TxRingBuffer = kzalloc(p->RIOBufferSize, GFP_KERNEL); } PortP->TxBufferOut = 0; PortP->TxBufferIn = 0; -- cgit v1.2.3