[PATCH] drivers/char/[i]stallion: Clean up kmalloc usage

Delete two useless kmalloc wrappers and use kmalloc/kzalloc.  Some weird
NULL checks are also simplified.

Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 9 insertions, 23 deletions

diff --git a/drivers/char/istallion.c b/drivers/char/istallion.c
index e5247f8..ef20c1f 100644
--- a/drivers/char/istallion.c
+++ b/drivers/char/istallion.c
@@ -706,7 +706,6 @@ static int	stli_portcmdstats(stliport_t *portp);
 static int	stli_clrportstats(stliport_t *portp, comstats_t __user *cp);
 static int	stli_getportstruct(stliport_t __user *arg);
 static int	stli_getbrdstruct(stlibrd_t __user *arg);
-static void	*stli_memalloc(int len);
 static stlibrd_t *stli_allocbrd(void);
 
 static void	stli_ecpinit(stlibrd_t *brdp);
@@ -997,17 +996,6 @@ static int stli_parsebrd(stlconf_t *confp, char **argp)
 
 /*****************************************************************************/
 
-/*
- *	Local driver kernel malloc routine.
- */
-
-static void *stli_memalloc(int len)
-{
-	return((void *) kmalloc(len, GFP_KERNEL));
-}
-
-/*****************************************************************************/
-
 static int stli_open(struct tty_struct *tty, struct file *filp)
 {
 	stlibrd_t	*brdp;
@@ -3227,13 +3215,12 @@ static int stli_initports(stlibrd_t *brdp)
 #endif
 
 	for (i = 0, panelnr = 0, panelport = 0; (i < brdp->nrports); i++) {
-		portp = (stliport_t *) stli_memalloc(sizeof(stliport_t));
-		if (portp == (stliport_t *) NULL) {
+		portp = kzalloc(sizeof(stliport_t), GFP_KERNEL);
+		if (!portp) {
 			printk("STALLION: failed to allocate port structure\n");
 			continue;
 		}
 
-		memset(portp, 0, sizeof(stliport_t));
 		portp->magic = STLI_PORTMAGIC;
 		portp->portnr = i;
 		portp->brdnr = brdp->brdnr;
@@ -4610,14 +4597,13 @@ static stlibrd_t *stli_allocbrd(void)
 {
 	stlibrd_t	*brdp;
 
-	brdp = (stlibrd_t *) stli_memalloc(sizeof(stlibrd_t));
-	if (brdp == (stlibrd_t *) NULL) {
+	brdp = kzalloc(sizeof(stlibrd_t), GFP_KERNEL);
+	if (!brdp) {
 		printk(KERN_ERR "STALLION: failed to allocate memory "
 				"(size=%d)\n", sizeof(stlibrd_t));
-		return((stlibrd_t *) NULL);
+		return NULL;
 	}
 
-	memset(brdp, 0, sizeof(stlibrd_t));
 	brdp->magic = STLI_BOARDMAGIC;
 	return(brdp);
 }
@@ -5210,12 +5196,12 @@ int __init stli_init(void)
 /*
  *	Allocate a temporary write buffer.
  */
-	stli_tmpwritebuf = (char *) stli_memalloc(STLI_TXBUFSIZE);
-	if (stli_tmpwritebuf == (char *) NULL)
+	stli_tmpwritebuf = kmalloc(STLI_TXBUFSIZE, GFP_KERNEL);
+	if (!stli_tmpwritebuf)
 		printk(KERN_ERR "STALLION: failed to allocate memory "
 				"(size=%d)\n", STLI_TXBUFSIZE);
-	stli_txcookbuf = stli_memalloc(STLI_TXBUFSIZE);
-	if (stli_txcookbuf == (char *) NULL)
+	stli_txcookbuf = kmalloc(STLI_TXBUFSIZE, GFP_KERNEL);
+	if (!stli_txcookbuf)
 		printk(KERN_ERR "STALLION: failed to allocate memory "
 				"(size=%d)\n", STLI_TXBUFSIZE);