From: Russell King <rmk+lkml@arm.linux.org.uk>
Date: Fri, 10 Nov 2006 20:27:53 +0000 (-0800)
Subject: [PATCH] Fix missing parens in set_personality()
X-Git-Tag: v2.6.19-rc6~38
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d8b295f29091310d746509bb6d5828aaf4907a18;p=linux-2.6

[PATCH] Fix missing parens in set_personality()

If you call set_personality() with an expression such as:

	set_personality(foo ? PERS_FOO1 : PERS_FOO2);

then this evaluates to:

	((current->personality == foo ? PERS_FOO1 : PERS_FOO2) ? ...

which is obviously not the intended result.  Add the missing parents
to ensure this gets evaluated as expected:

	((current->personality == (foo ? PERS_FOO1 : PERS_FOO2)) ? ...

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/include/linux/personality.h b/include/linux/personality.h
index bf4cf2080e..012cd55818 100644
--- a/include/linux/personality.h
+++ b/include/linux/personality.h
@@ -114,7 +114,7 @@ struct exec_domain {
  * Change personality of the currently running process.
  */
 #define set_personality(pers) \
-	((current->personality == pers) ? 0 : __set_personality(pers))
+	((current->personality == (pers)) ? 0 : __set_personality(pers))
 
 #endif /* __KERNEL__ */