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authorMarkus Elfring <elfring@users.sourceforge.net>2017-01-13 15:25:22 +0100
committerMark Brown <broonie@kernel.org>2017-01-17 18:35:06 +0000
commit84aa0ba12442fa46f461c491c42efdadf6995c96 (patch)
tree54e4a425c15f97397571fb1f3199ac9d68e2e59a /drivers/spi
parent6ceb3b27b1edd1112f1879cc1f149d39a3da2dc2 (diff)
spi/topcliff-pch: Use kcalloc() in pch_spi_handle_dma()
* Multiplications for the size determination of memory allocations indicated that array data structures should be processed. Thus use the corresponding function "kcalloc". This issue was detected by using the Coccinelle software. * Replace the specification of a data structure by pointer dereferences to make the corresponding size determination a bit safer according to the Linux coding style convention. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
-rw-r--r--drivers/spi/spi-topcliff-pch.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/spi/spi-topcliff-pch.c b/drivers/spi/spi-topcliff-pch.c
index 250452a6eead..1beeb16e836a 100644
--- a/drivers/spi/spi-topcliff-pch.c
+++ b/drivers/spi/spi-topcliff-pch.c
@@ -1007,7 +1007,7 @@ static void pch_spi_handle_dma(struct pch_spi_data *data, int *bpw)
spin_unlock_irqrestore(&data->lock, flags);
/* RX */
- dma->sg_rx_p = kzalloc(sizeof(struct scatterlist)*num, GFP_ATOMIC);
+ dma->sg_rx_p = kcalloc(num, sizeof(*dma->sg_rx_p), GFP_ATOMIC);
sg_init_table(dma->sg_rx_p, num); /* Initialize SG table */
/* offset, length setting */
sg = dma->sg_rx_p;
@@ -1067,7 +1067,7 @@ static void pch_spi_handle_dma(struct pch_spi_data *data, int *bpw)
head = 0;
}
- dma->sg_tx_p = kzalloc(sizeof(struct scatterlist)*num, GFP_ATOMIC);
+ dma->sg_tx_p = kcalloc(num, sizeof(*dma->sg_tx_p), GFP_ATOMIC);
sg_init_table(dma->sg_tx_p, num); /* Initialize SG table */
/* offset, length setting */
sg = dma->sg_tx_p;