[PATCH] arm: mach-davinci: use kzalloc()
From: Thomas Meyer
Date: Sat Aug 06 2011 - 07:26:56 EST
From: Thomas Meyer <thomas@xxxxxxxx>
Use kzalloc rather than kmalloc followed by memset with 0
This considers some simple cases that are common and easy to validate
Note in particular that there are no ...s in the rule, so all of the
matched code has to be contiguous
The semantic patch that makes this output is available
in scripts/coccinelle/api/alloc/kzalloc-simple.cocci.
More information about semantic patching is available at
http://coccinelle.lip6.fr/
Signed-off-by: Thomas Meyer <thomas@xxxxxxxx>
---
diff -u -p a/arch/arm/mach-davinci/dma.c b/arch/arm/mach-davinci/dma.c
--- a/arch/arm/mach-davinci/dma.c 2010-10-26 18:50:12.713889353 +0200
+++ b/arch/arm/mach-davinci/dma.c 2011-08-01 20:40:38.326583216 +0200
@@ -1435,12 +1435,11 @@ static int __init edma_probe(struct plat
goto fail1;
}
- edma_cc[j] = kmalloc(sizeof(struct edma), GFP_KERNEL);
+ edma_cc[j] = kzalloc(sizeof(struct edma), GFP_KERNEL);
if (!edma_cc[j]) {
status = -ENOMEM;
goto fail1;
}
- memset(edma_cc[j], 0, sizeof(struct edma));
edma_cc[j]->num_channels = min_t(unsigned, info[j]->n_channel,
EDMA_MAX_DMACH);
--
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