[PATCH] staging: rtl8192e: Use kzalloc rather than kmalloc

From: Thomas Meyer
Date: Tue Nov 08 2011 - 14:21:31 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 change 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/drivers/staging/rtl8192e/rtllib_crypt.c b/drivers/staging/rtl8192e/rtllib_crypt.c
--- a/drivers/staging/rtl8192e/rtllib_crypt.c 2011-11-07 19:38:11.773647045 +0100
+++ b/drivers/staging/rtl8192e/rtllib_crypt.c 2011-11-08 09:40:09.789244618 +0100
@@ -104,11 +104,10 @@ int rtllib_register_crypto_ops(struct rt
if (hcrypt == NULL)
return -1;

- alg = kmalloc(sizeof(*alg), GFP_KERNEL);
+ alg = kzalloc(sizeof(*alg), GFP_KERNEL);
if (alg == NULL)
return -ENOMEM;

- memset(alg, 0, sizeof(*alg));
alg->ops = ops;

spin_lock_irqsave(&hcrypt->lock, flags);
@@ -202,11 +201,10 @@ int __init rtllib_crypto_init(void)
{
int ret = -ENOMEM;

- hcrypt = kmalloc(sizeof(*hcrypt), GFP_KERNEL);
+ hcrypt = kzalloc(sizeof(*hcrypt), GFP_KERNEL);
if (!hcrypt)
goto out;

- memset(hcrypt, 0, sizeof(*hcrypt));
INIT_LIST_HEAD(&hcrypt->algs);
spin_lock_init(&hcrypt->lock);



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