diff options
| author | Thomas Meyer <thomas@m3y3r.de> | 2011-12-02 12:36:13 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-12-04 01:32:06 -0500 |
| commit | c2e4e25afcc8ae1835a6100089f1f9fd3a362430 (patch) | |
| tree | 91220e94fa972df95b7bb0277d019fdb9f3cdbf6 | |
| parent | ddf98e6d30a966dbd6e675c90e2caa5b9486e519 (diff) | |
sfc: Use kcalloc instead of kzalloc to allocate array
The advantage of kcalloc is, that will prevent integer overflows which could
result from the multiplication of number of elements and size and it is also
a bit nicer to read.
The semantic patch that makes this change is available
in https://lkml.org/lkml/2011/11/25/107
Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/sfc/rx.c | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/sfc/selftest.c | 4 | ||||
| -rw-r--r-- | drivers/net/ethernet/sfc/tx.c | 2 |
3 files changed, 4 insertions, 4 deletions
diff --git a/drivers/net/ethernet/sfc/rx.c b/drivers/net/ethernet/sfc/rx.c index 752d521c09b..955b14956de 100644 --- a/drivers/net/ethernet/sfc/rx.c +++ b/drivers/net/ethernet/sfc/rx.c @@ -669,7 +669,7 @@ int efx_probe_rx_queue(struct efx_rx_queue *rx_queue) rx_queue->ptr_mask); /* Allocate RX buffers */ - rx_queue->buffer = kzalloc(entries * sizeof(*rx_queue->buffer), + rx_queue->buffer = kcalloc(entries, sizeof(*rx_queue->buffer), GFP_KERNEL); if (!rx_queue->buffer) return -ENOMEM; diff --git a/drivers/net/ethernet/sfc/selftest.c b/drivers/net/ethernet/sfc/selftest.c index 822f6c2a6a7..52edd24fcde 100644 --- a/drivers/net/ethernet/sfc/selftest.c +++ b/drivers/net/ethernet/sfc/selftest.c @@ -503,8 +503,8 @@ efx_test_loopback(struct efx_tx_queue *tx_queue, /* Determine how many packets to send */ state->packet_count = efx->txq_entries / 3; state->packet_count = min(1 << (i << 2), state->packet_count); - state->skbs = kzalloc(sizeof(state->skbs[0]) * - state->packet_count, GFP_KERNEL); + state->skbs = kcalloc(state->packet_count, + sizeof(state->skbs[0]), GFP_KERNEL); if (!state->skbs) return -ENOMEM; state->flush = false; diff --git a/drivers/net/ethernet/sfc/tx.c b/drivers/net/ethernet/sfc/tx.c index e0e00b3d6a8..72f0fbc73b1 100644 --- a/drivers/net/ethernet/sfc/tx.c +++ b/drivers/net/ethernet/sfc/tx.c @@ -479,7 +479,7 @@ int efx_probe_tx_queue(struct efx_tx_queue *tx_queue) tx_queue->queue, efx->txq_entries, tx_queue->ptr_mask); /* Allocate software ring */ - tx_queue->buffer = kzalloc(entries * sizeof(*tx_queue->buffer), + tx_queue->buffer = kcalloc(entries, sizeof(*tx_queue->buffer), GFP_KERNEL); if (!tx_queue->buffer) return -ENOMEM; |