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[IRDA]: Replace hard-coded dev_self[] array sizes with ARRAY_SIZE()

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Several IR drivers used "for (i = 0; i < 4; i++)" to walk their
dev_self[] table.  Better to use ARRAY_SIZE().  And fix ali-ircc so it
won't run off the end if we find too many adapters.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Bjorn Helgaas 2006-08-15 00:05:38 -07:00 committed by David S. Miller
parent 9a673e563e
commit 9c3bd6833a
4 changed files with 15 additions and 6 deletions
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8
drivers/net/irda/ali-ircc.c
View file

@ -249,7 +249,7 @@ static void __exit ali_ircc_cleanup(void)
IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__);
for (i=0; i < 4; i++) {
for (i=0; i < ARRAY_SIZE(dev_self); i++) {
if (dev_self[i])
ali_ircc_close(dev_self[i]);
}
@ -273,6 +273,12 @@ static int ali_ircc_open(int i, chipio_t *info)
int err;
IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__);
if (i >= ARRAY_SIZE(dev_self)) {
IRDA_ERROR("%s(), maximum number of supported chips reached!\n",
__FUNCTION__);
return -ENOMEM;
}
/* Set FIR FIFO and DMA Threshold */
if ((ali_ircc_setup(info)) == -1)

4
drivers/net/irda/irport.c
View file

@ -1090,7 +1090,7 @@ static int __init irport_init(void)
{
int i;
for (i=0; (io[i] < 2000) && (i < 4); i++) {
for (i=0; (io[i] < 2000) && (i < ARRAY_SIZE(dev_self)); i++) {
if (irport_open(i, io[i], irq[i]) != NULL)
return 0;
}
@ -1112,7 +1112,7 @@ static void __exit irport_cleanup(void)
IRDA_DEBUG( 4, "%s()\n", __FUNCTION__);
for (i=0; i < 4; i++) {
for (i=0; i < ARRAY_SIZE(dev_self); i++) {
if (dev_self[i])
irport_close(dev_self[i]);
}

5
drivers/net/irda/via-ircc.c
View file

@ -279,7 +279,7 @@ static void via_ircc_clean(void)
IRDA_DEBUG(3, "%s()\n", __FUNCTION__);
for (i=0; i < 4; i++) {
for (i=0; i < ARRAY_SIZE(dev_self); i++) {
if (dev_self[i])
via_ircc_close(dev_self[i]);
}
@ -327,6 +327,9 @@ static __devinit int via_ircc_open(int i, chipio_t * info, unsigned int id)
IRDA_DEBUG(3, "%s()\n", __FUNCTION__);
if (i >= ARRAY_SIZE(dev_self))
return -ENOMEM;
/* Allocate new instance of the driver */
dev = alloc_irdadev(sizeof(struct via_ircc_cb));
if (dev == NULL)

4
drivers/net/irda/w83977af_ir.c
View file

@ -117,7 +117,7 @@ static int __init w83977af_init(void)
IRDA_DEBUG(0, "%s()\n", __FUNCTION__ );
for (i=0; (io[i] < 2000) && (i < 4); i++) {
for (i=0; (io[i] < 2000) && (i < ARRAY_SIZE(dev_self)); i++) {
if (w83977af_open(i, io[i], irq[i], dma[i]) == 0)
return 0;
}
@ -136,7 +136,7 @@ static void __exit w83977af_cleanup(void)
IRDA_DEBUG(4, "%s()\n", __FUNCTION__ );
for (i=0; i < 4; i++) {
for (i=0; i < ARRAY_SIZE(dev_self); i++) {
if (dev_self[i])
w83977af_close(dev_self[i]);
}