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From: Frank Sorenson <frank@tuxrocks.com>
To: UML Devel <user-mode-linux-devel@lists.sourceforge.net>
Subject: [uml-devel] [PATCH] Put the check for NULL before the use of a potentially-null value
Date: Mon, 10 Jan 2005 14:52:12 -0700	[thread overview]
Message-ID: <41E2F90C.4020707@tuxrocks.com> (raw)

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This patch reorders two lines to check a variable for NULL before using 
the variable.

Signed-off-by: Frank Sorenson <frank@tuxrocks.com>

Frank
---------------------------------------------------------------------------
Frank Sorenson - KD7TZK
Systems Manager, Computer Science Department
Brigham Young University
frank@tuxrocks.com

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diff -Naur linux-2.6.10-mm2.orig/arch/um/drivers/line.c linux-2.6.10-mm2/arch/um/drivers/line.c
--- linux-2.6.10-mm2.orig/arch/um/drivers/line.c	2005-01-10 14:35:20.379815252 -0700
+++ linux-2.6.10-mm2/arch/um/drivers/line.c	2005-01-10 14:35:59.786829555 -0700
@@ -593,8 +593,8 @@
 		}
 	}
 	tty  = winch->tty;
-	line = tty->driver_data;
 	if (tty != NULL) {
+		line = tty->driver_data;
 		chan_window_size(&line->chan_list,
 				 &tty->winsize.ws_row, 
 				 &tty->winsize.ws_col);

             reply	other threads:[~2005-01-10 21:52 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-01-10 21:52 Frank Sorenson [this message]
2005-01-11  0:28 ` [uml-devel] [PATCH] Put the check for NULL before the use of a potentially-null value Blaisorblade
2005-01-11  1:06   ` Frank Sorenson
2005-01-11  9:13   ` Gerd Knorr

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