staging/lustre/llite: Fix uninitialized variable

'f.f_flags' might be used uninitialized in this function.

xattr.c:248: 'f.f_flags' is declared.
xattr.c:244: lump!= ( (void* )0) is true
xattr.c:254: 'f.f_flags' is used, but is uninitialized.
Signed-off-by: NDmitry Eremin <dmitry.eremin@intel.com>
Reviewed-on: http://review.whamcloud.com/10663
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4629Reviewed-by: NAndreas Dilger <andreas.dilger@intel.com>
Reviewed-by: NJames Simmons <uja.ornl@gmail.com>
Signed-off-by: NOleg Drokin <oleg.drokin@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/lustre/llite/xattr.c

@@ -246,6 +246,7 @@ int ll_setxattr(struct dentry *dentry, const char *name,
 			int lum_size = (lump->lmm_magic == LOV_USER_MAGIC_V1) ?
 				sizeof(*lump) : sizeof(struct lov_user_md_v3);
 
+			memset(&f, 0, sizeof(f)); /* f.f_flags is used below */
 			f.f_dentry = dentry;
 			rc = ll_lov_setstripe_ea_info(inode, &f, flags, lump,
 						      lum_size);