From: Dmitry Torokhov IRDA: smsc-ircc2 - remove home-grown DIM macro, use ARRAY_SIZE intead. Also fix out-of-bound array access. Signed-off-by: Dmitry Torokhov Cc: Jean Tourrilhes Signed-off-by: Andrew Morton --- drivers/net/irda/smsc-ircc2.c | 5 ++--- 1 files changed, 2 insertions(+), 3 deletions(-) diff -puN drivers/net/irda/smsc-ircc2.c~smsc-ircc2-drop-dim-macro-in-favor-of-array_size drivers/net/irda/smsc-ircc2.c --- 25/drivers/net/irda/smsc-ircc2.c~smsc-ircc2-drop-dim-macro-in-favor-of-array_size 2005-06-24 23:45:12.000000000 -0700 +++ 25-akpm/drivers/net/irda/smsc-ircc2.c 2005-06-24 23:45:12.000000000 -0700 @@ -163,7 +163,6 @@ struct smsc_ircc_cb { /* Constants */ static const char *driver_name = "smsc-ircc2"; -#define DIM(x) (sizeof(x)/(sizeof(*(x)))) #define SMSC_IRCC2_C_IRDA_FALLBACK_SPEED 9600 #define SMSC_IRCC2_C_DEFAULT_TRANSCEIVER 1 #define SMSC_IRCC2_C_NET_TIMEOUT 0 @@ -240,7 +239,7 @@ static smsc_transceiver_t smsc_transceiv { "ATC IRMode", smsc_ircc_set_transceiver_smsc_ircc_atc, smsc_ircc_probe_transceiver_smsc_ircc_atc }, { NULL, NULL } }; -#define SMSC_IRCC2_C_NUMBER_OF_TRANSCEIVERS (DIM(smsc_transceivers)-1) +#define SMSC_IRCC2_C_NUMBER_OF_TRANSCEIVERS (ARRAY_SIZE(smsc_transceivers) - 1) /* SMC SuperIO chipsets definitions */ @@ -400,7 +399,7 @@ static int __init smsc_ircc_open(unsigne goto err_out; err = -ENOMEM; - if (dev_count > DIM(dev_self)) { + if (dev_count >= ARRAY_SIZE(dev_self)) { IRDA_WARNING("%s(), too many devices!\n", __FUNCTION__); goto err_out1; } _