linux-kernel - [PATCH] ALSA: emu10k1: casting (void *) value returned by kcalloc is useless

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <52281D37.40808@cn.fujitsu.com>
Date:	Thu, 05 Sep 2013 13:57:11 +0800
From:	Duan Jiong <duanj.fnst@...fujitsu.com>
To:	perex@...ex.cz
CC:	linux-kernel@...r.kernel.org
Subject: [PATCH] ALSA: emu10k1: casting (void *) value returned by kcalloc
 is useless

From: Duan Jiong <duanj.fnst@...fujitsu.com>

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

Signed-off-by: Duan Jiong <duanj.fnst@...fujitsu.com>
---
 sound/pci/emu10k1/emufx.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/sound/pci/emu10k1/emufx.c b/sound/pci/emu10k1/emufx.c
index 0275209..68edb2d 100644
--- a/sound/pci/emu10k1/emufx.c
+++ b/sound/pci/emu10k1/emufx.c
@@ -1183,9 +1183,8 @@ static int _snd_emu10k1_audigy_init_efx(struct snd_emu10k1 *emu)
 	mm_segment_t seg;
 
 	if ((icode = kzalloc(sizeof(*icode), GFP_KERNEL)) == NULL ||
-	    (icode->gpr_map = (u_int32_t __user *)
-	     kcalloc(512 + 256 + 256 + 2 * 1024, sizeof(u_int32_t),
-		     GFP_KERNEL)) == NULL ||
+	    (icode->gpr_map = kcalloc(512 + 256 + 256 + 2 * 1024,
+				sizeof(u_int32_t), GFP_KERNEL)) == NULL ||
 	    (controls = kcalloc(SND_EMU10K1_GPR_CONTROLS,
 				sizeof(*controls), GFP_KERNEL)) == NULL) {
 		err = -ENOMEM;
@@ -1815,9 +1814,8 @@ static int _snd_emu10k1_init_efx(struct snd_emu10k1 *emu)
 
 	if ((icode = kzalloc(sizeof(*icode), GFP_KERNEL)) == NULL)
 		return -ENOMEM;
-	if ((icode->gpr_map = (u_int32_t __user *)
-	     kcalloc(256 + 160 + 160 + 2 * 512, sizeof(u_int32_t),
-		     GFP_KERNEL)) == NULL ||
+	if ((icode->gpr_map = kcalloc(256 + 160 + 160 + 2 * 512,
+				sizeof(u_int32_t), GFP_KERNEL)) == NULL ||
             (controls = kcalloc(SND_EMU10K1_GPR_CONTROLS,
 				sizeof(struct snd_emu10k1_fx8010_control_gpr),
 				GFP_KERNEL)) == NULL ||
-- 
1.8.3.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/