From: Oleg Drokin <green@linuxhacker.ru>
Date: Sun, 27 Apr 2014 18:42:29 +0000 (-0400)
Subject: staging/lustre/llite: Fix a compile warning.
X-Git-Tag: firefly_0821_release~176^2~3465^2~39^2~1118
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=1da4f83c0c43f25baf356c4cc719255877da6b1e;p=firefly-linux-kernel-4.4.55.git

staging/lustre/llite: Fix a compile warning.

Quiet the warning below in Lustre code.
Actually the warning is invalid since we either always assign
the symname in ll_readlink_internal or return an error there and
then the following rc check would assign symlink variable explicitly.

In file included from /home/green/bk/linux/drivers/staging/lustre/lustre/llite/../include/linux/lustre_compat25.h:41:0,
                 from /home/green/bk/linux/drivers/staging/lustre/lustre/llite/../include/linux/lvfs.h:48,
                 from /home/green/bk/linux/drivers/staging/lustre/lustre/llite/../include/lvfs.h:45,
                 from /home/green/bk/linux/drivers/staging/lustre/lustre/llite/../include/obd_support.h:41,
                 from /home/green/bk/linux/drivers/staging/lustre/lustre/llite/../include/obd_class.h:40,
                 from /home/green/bk/linux/drivers/staging/lustre/lustre/llite/../include/linux/lustre_lite.h:49,
                 from /home/green/bk/linux/drivers/staging/lustre/lustre/llite/../include/lustre_lite.h:45,
                 from /home/green/bk/linux/drivers/staging/lustre/lustre/llite/symlink.c:42:
/home/green/bk/linux/drivers/staging/lustre/lustre/llite/symlink.c: In function ‘ll_follow_link’:
/home/green/bk/linux/include/linux/namei.h:88:29: warning: ‘symname’ may be used uninitialized in this function [-Wmaybe-uninitialized]
  nd->saved_names[nd->depth] = path;
                             ^
/home/green/bk/linux/drivers/staging/lustre/lustre/llite/symlink.c:123:8: note: ‘symname’ was declared here
  char *symname;
        ^

Signed-off-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/lustre/lustre/llite/symlink.c b/drivers/staging/lustre/lustre/llite/symlink.c
index 80d48b5ae247..129d3023dcea 100644
--- a/drivers/staging/lustre/lustre/llite/symlink.c
+++ b/drivers/staging/lustre/lustre/llite/symlink.c
@@ -120,7 +120,7 @@ static void *ll_follow_link(struct dentry *dentry, struct nameidata *nd)
 	struct inode *inode = dentry->d_inode;
 	struct ptlrpc_request *request = NULL;
 	int rc;
-	char *symname;
+	char *symname = NULL;
 
 	CDEBUG(D_VFSTRACE, "VFS Op\n");
 	/* Limit the recursive symlink depth to 5 instead of default