[-mm patch] include/linux/ptrace.h must #include <linux/errno.h>

[Adrian Bunk <bunk@stusta.de>]

On Thu, Feb 15, 2007 at 05:14:08AM -0800, Andrew Morton wrote:
>...
> Changes since 2.6.20-rc6-mm3:
>...
> +utrace-utrace-ptrace-compat.patch
>...
>  utrace tree
>...


This patch fixes the following compile error:

<--  snip  -->

...
  CC      drivers/net/wan/lmc/lmc_media.o
In file included from /home/bunk/linux/kernel-2.6/linux-2.6.20-mm2/drivers/net/wan/lmc/lmc_media.c:6:
/home/bunk/linux/kernel-2.6/linux-2.6.20-mm2/include/linux/ptrace.h: In function 'ptrace_do_wait':
/home/bunk/linux/kernel-2.6/linux-2.6.20-mm2/include/linux/ptrace.h:238: error: 'ECHILD' undeclared (first use in this function)
/home/bunk/linux/kernel-2.6/linux-2.6.20-mm2/include/linux/ptrace.h:238: error: (Each undeclared identifier is reported only once
/home/bunk/linux/kernel-2.6/linux-2.6.20-mm2/include/linux/ptrace.h:238: error: for each function it appears in.)
make[5]: *** [drivers/net/wan/lmc/lmc_media.o] Error 1

<--  snip  -->


Signed-off-by: Adrian Bunk <bunk@stusta.de>

---
--- linux-2.6.20-mm2/include/linux/ptrace.h.old	2007-02-19 22:59:04.000000000 +0100
+++ linux-2.6.20-mm2/include/linux/ptrace.h	2007-02-19 22:59:24.000000000 +0100
@@ -51,6 +51,7 @@
 #ifdef __KERNEL__
 #include <linux/compiler.h>
 #include <linux/types.h>
+#include <linux/errno.h>
 struct task_struct;
 struct siginfo;
 struct rusage;

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