From: Navya Sri Nizamkari <navyasri.tech@gmail.com>
Date: Sun, 1 Mar 2015 07:38:00 +0000 (+0530)
Subject: staging: lustre: Use kasprintf.
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=95745e9b1de2;p=linux-beck.git

staging: lustre: Use kasprintf.

This patch uses kasprintf as it combines kmalloc and
sprintf, and takes care of the size calculation itself.

The semantic patch that makes this change is as follows:

// <smpl>
@@
expression a,flag;
expression list args;
statement S;
@@

  a =
-  \(kmalloc\|kzalloc\)(...,flag)
+  kasprintf(flag,args)
  <... when != a
  if (a == NULL || ...) S
  ...>
- sprintf(a,args);

Signed-off-by: Navya Sri Nizamkari <navyasri.tech@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c
index 59f8387b4487..8f8c81d8a47f 100644
--- a/drivers/staging/lustre/lustre/llite/llite_lib.c
+++ b/drivers/staging/lustre/lustre/llite/llite_lib.c
@@ -977,19 +977,17 @@ int ll_fill_super(struct super_block *sb, struct vfsmount *mnt)
 	CDEBUG(D_CONFIG, "Found profile %s: mdc=%s osc=%s\n", profilenm,
 	       lprof->lp_md, lprof->lp_dt);
 
-	dt = kzalloc(strlen(lprof->lp_dt) + instlen + 2, GFP_NOFS);
+	dt = kasprintf(GFP_NOFS, "%s-%p", lprof->lp_dt, cfg->cfg_instance);
 	if (!dt) {
 		err = -ENOMEM;
 		goto out_free;
 	}
-	sprintf(dt, "%s-%p", lprof->lp_dt, cfg->cfg_instance);
 
-	md = kzalloc(strlen(lprof->lp_md) + instlen + 2, GFP_NOFS);
+	md = kasprintf(GFP_NOFS, "%s-%p", lprof->lp_dt, cfg->cfg_instance);
 	if (!md) {
 		err = -ENOMEM;
 		goto out_free;
 	}
-	sprintf(md, "%s-%p", lprof->lp_md, cfg->cfg_instance);
 
 	/* connections, registrations, sb setup */
 	err = client_common_fill_super(sb, md, dt, mnt);