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spi/topcliff-pch: drop double zeroing 

sg_init_table zeroes its first argument, so the allocation of that argument
doesn't have to.

the semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression x,n,flags;
@@

x =
- kcalloc
+ kmalloc_array
  (n,sizeof(*x),flags)
...
sg_init_table(x,n)
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Link: https://lore.kernel.org/r/1600601186-7420-12-git-send-email-Julia.Lawall@inria.fr
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Julia Lawall 2020-09-20 13:26:23 +02:00 committed by Mark Brown
parent bc3d924399
commit ca03dba30f
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 2 additions and 2 deletions
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4
drivers/spi/spi-topcliff-pch.c
View File

@ -1002,7 +1002,7 @@ static void pch_spi_handle_dma(struct pch_spi_data *data, int *bpw)
spin_unlock_irqrestore(&data->lock, flags); spin_unlock_irqrestore(&data->lock, flags);
/* RX */ /* RX */
dma->sg_rx_p = kcalloc(num, sizeof(*dma->sg_rx_p), GFP_ATOMIC); dma->sg_rx_p = kmalloc_array(num, sizeof(*dma->sg_rx_p), GFP_ATOMIC);
if (!dma->sg_rx_p) if (!dma->sg_rx_p)
return; return;
@ -1065,7 +1065,7 @@ static void pch_spi_handle_dma(struct pch_spi_data *data, int *bpw)
head = 0; head = 0;
} }
dma->sg_tx_p = kcalloc(num, sizeof(*dma->sg_tx_p), GFP_ATOMIC); dma->sg_tx_p = kmalloc_array(num, sizeof(*dma->sg_tx_p), GFP_ATOMIC);
if (!dma->sg_tx_p) if (!dma->sg_tx_p)
return; return;