linux-kernel - [PATCH] scripts/kconfig/menu.c: warning: jump may be used uninitialized in this function

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Date:	Sun, 27 Oct 2013 18:28:55 -0700 (PDT)
From:	Christian Kujau <lists@...dbynature.de>
To:	LKML <linux-kernel@...r.kernel.org>
cc:	mmarek@...e.cz, yann.morin.1998@...e.fr, akpm@...ux-foundation.org
Subject: [PATCH] scripts/kconfig/menu.c: warning: jump may be used uninitialized
 in this function

While doing "make oldconfig" on 3.12-rc7 with gcc-4.7.2 (Debian), the 
following warning is printed:

  HOSTCC  scripts/kconfig/zconf.tab.o
In file included from scripts/kconfig/zconf.tab.c:2537:0:
/usr/local/src/linux-git/scripts/kconfig/menu.c: In function ‘get_symbol_str’:
/usr/local/src/linux-git/scripts/kconfig/menu.c:586:18: warning: ‘jump’ may be used uninitialized in this function [-Wmaybe-uninitialized]
/usr/local/src/linux-git/scripts/kconfig/menu.c:547:19: note: ‘jump’ was declared here

The following patch seems to fix that:

 Signed-off-by: Christian Kujau <lists@...dbynature.de>

diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
index c1d5320..23b1827 100644
--- a/scripts/kconfig/menu.c
+++ b/scripts/kconfig/menu.c
@@ -544,7 +544,7 @@ static void get_prompt_str(struct gstr *r, struct property *prop,
 {
 	int i, j;
 	struct menu *submenu[8], *menu, *location = NULL;
-	struct jump_key *jump;
+	struct jump_key *jump = NULL;
 
 	str_printf(r, _("Prompt: %s\n"), _(prop->text));
 	menu = prop->menu->parent;


Christian.
-- 
BOFH excuse #177:

sticktion
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