linux-kernel - fix rtc

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Date:	Sun, 17 May 2009 23:04:27 +0800
From:	ye janboe <janboe.ye@...il.com>
To:	linux-kernel <linux-kernel@...r.kernel.org>
Cc:	rjw@...k.pl, bunk@...nel.org, bugme-janitors@...ts.osdl.org
Subject: fix rtc_cmos bug

    fix  Bug 13326 -  Null pointer dereference in rtc-cmos driver
    http://bugzilla.kernel.org/show_bug.cgi?id=13326

    Signed-off-by: janboe <janboe.ye@...il.com>

diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index 23e10b6..da132f6 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -1179,7 +1179,9 @@ static int __init cmos_init(void)
        int retval = 0;

 #ifdef CONFIG_PNP
-       pnp_register_driver(&cmos_pnp_driver);
+       retval = pnp_register_driver(&cmos_pnp_driver);
+       if (retval)
+               return retval;
 #endif

        if (!cmos_rtc.dev)
--
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