ALSA: asihpi - use kzalloc()

From: Thomas Meyer <[email protected]>

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 <[email protected]>

---

diff -u -p a/sound/pci/asihpi/hpicmn.c b/sound/pci/asihpi/hpicmn.c

sound/pci/asihpi/hpicmn.c 2011-08-01 20:42:34.859285236 +0200 renamed from sound/pci/asihpi/hpicmn.c 2011-07-26 00:46:12.970154018 +0200 +2 -3

@@ -631,13 +631,12 @@ struct hpi_control_cache *hpi_alloc_cont
 	if (!p_cache)
 		return NULL;
 
-	p_cache->p_info =
-		kmalloc(sizeof(*p_cache->p_info) * control_count, GFP_KERNEL);
+	p_cache->p_info = kzalloc(sizeof(*p_cache->p_info) * control_count,
+				  GFP_KERNEL);
 	if (!p_cache->p_info) {
 		kfree(p_cache);
 		return NULL;
 	}
-	memset(p_cache->p_info, 0, sizeof(*p_cache->p_info) * control_count);
 	p_cache->cache_size_in_bytes = size_in_bytes;
 	p_cache->control_count = control_count;
 	p_cache->p_cache = p_dsp_control_buffer;