diff options
| author | Bjorn Helgaas <bjorn.helgaas@hp.com> | 2006-08-15 11:05:38 +0400 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-09-23 01:54:45 +0400 |
| commit | 9c3bd6833a4df1abd9ecd3b51492b8949bf9cd11 (patch) | |
| tree | 6835d90852cd40289ad970b979b694ed55203e60 | |
| parent | 9a673e563e543a5c8a6f9824562e55e807b8a56c (diff) | |
| download | linux-9c3bd6833a4df1abd9ecd3b51492b8949bf9cd11.tar.xz | |
[IRDA]: Replace hard-coded dev_self[] array sizes with ARRAY_SIZE()
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>
| -rw-r--r-- | drivers/net/irda/ali-ircc.c | 8 | ||||
| -rw-r--r-- | drivers/net/irda/irport.c | 4 | ||||
| -rw-r--r-- | drivers/net/irda/via-ircc.c | 5 | ||||
| -rw-r--r-- | drivers/net/irda/w83977af_ir.c | 4 |
4 files changed, 15 insertions, 6 deletions
diff --git a/drivers/net/irda/ali-ircc.c b/drivers/net/irda/ali-ircc.c index e3c8cd5eca67..68d4c418cb98 100644 --- a/drivers/net/irda/ali-ircc.c +++ b/drivers/net/irda/ali-ircc.c @@ -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) diff --git a/drivers/net/irda/irport.c b/drivers/net/irda/irport.c index 44efd49bf4a9..ba4f3eb988b3 100644 --- a/drivers/net/irda/irport.c +++ b/drivers/net/irda/irport.c @@ -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]); } diff --git a/drivers/net/irda/via-ircc.c b/drivers/net/irda/via-ircc.c index 8bafb455c102..79b85f327500 100644 --- a/drivers/net/irda/via-ircc.c +++ b/drivers/net/irda/via-ircc.c @@ -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) diff --git a/drivers/net/irda/w83977af_ir.c b/drivers/net/irda/w83977af_ir.c index 0ea65c4c6f85..8421597072a7 100644 --- a/drivers/net/irda/w83977af_ir.c +++ b/drivers/net/irda/w83977af_ir.c @@ -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]); } |