linux-kernel - [PATCH] HID: hid-lg4ff: Casting (void *) value returned by kmalloc is useless

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Message-ID: <1320779660.8062.141.camel@localhost.localdomain>
Date:	Tue, 08 Nov 2011 20:14:14 +0100
From:	Thomas Meyer <thomas@...3r.de>
To:	Jiri Kosina <jkosina@...e.cz>, linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] HID: hid-lg4ff: Casting (void *) value returned by kmalloc
 is useless

From: Thomas Meyer <thomas@...3r.de>

 Casting (void *) value returned by kmalloc is useless
 as mentioned in Documentation/CodingStyle, Chap 14.

 The semantic patch that makes this change is available
 in scripts/coccinelle/api/alloc/drop_kmalloc_cast.cocci.

 More information about semantic patching is available at
 http://coccinelle.lip6.fr/

Signed-off-by: Thomas Meyer <thomas@...3r.de>
---

diff -u -p a/drivers/hid/hid-lg4ff.c b/drivers/hid/hid-lg4ff.c
--- a/drivers/hid/hid-lg4ff.c 2011-11-07 19:37:44.816570939 +0100
+++ b/drivers/hid/hid-lg4ff.c 2011-11-08 09:03:29.394045138 +0100
@@ -430,7 +430,7 @@ int lg4ff_init(struct hid_device *hid)
 	}
 
 	/* Add the device to device_list */
-	entry = (struct lg4ff_device_entry *)kzalloc(sizeof(struct lg4ff_device_entry), GFP_KERNEL);
+	entry = kzalloc(sizeof(struct lg4ff_device_entry), GFP_KERNEL);
 	if (!entry) {
 		hid_err(hid, "Cannot add device, insufficient memory.\n");
 		return -ENOMEM;


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