linux-kernel - [PATCH 2/2] ISDN: eicon, return on error

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Message-Id: <1250966584-29496-2-git-send-email-jirislaby@gmail.com>
Date:	Sat, 22 Aug 2009 20:43:04 +0200
From:	Jiri Slaby <jirislaby@...il.com>
To:	Armin Schindler <mac@...ware.de>
Cc:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	Jiri Slaby <jirislaby@...il.com>
Subject: [PATCH 2/2] ISDN: eicon, return on error

When diva_strace_read_uint returns an error, return even from
process_idi_event, because l2_state is uninitialized.

Signed-off-by: Jiri Slaby <jirislaby@...il.com>
---
 drivers/isdn/hardware/eicon/maintidi.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/isdn/hardware/eicon/maintidi.c b/drivers/isdn/hardware/eicon/maintidi.c
index 23960cb..41c26e7 100644
--- a/drivers/isdn/hardware/eicon/maintidi.c
+++ b/drivers/isdn/hardware/eicon/maintidi.c
@@ -959,8 +959,9 @@ static int process_idi_event (diva_strace_context_t* pLib,
 	}
 	if (!strncmp("State\\Layer2 No1", path, pVar->path_length)) {
 		char* tmp = &pLib->lines[0].pInterface->Layer2[0];
-    dword l2_state;
-    diva_strace_read_uint (pVar, &l2_state);
+		dword l2_state;
+		if (diva_strace_read_uint(pVar, &l2_state))
+			return -1;
 
 		switch (l2_state) {
 			case 0:
-- 
1.6.3.3

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