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* [PATCH] small time list process error in prom_getenv()
@ 2006-03-27  7:43 Freddy Spierenburg
  2006-03-27  8:32 ` Sergei Shtylylov
  0 siblings, 1 reply; 8+ messages in thread
From: Freddy Spierenburg @ 2006-03-27  7:43 UTC (permalink / raw)
  To: linux-mips


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Hi,

I found a small time bug in prom_getenv() for which I like to
share the fix with y'all.

prom_envp is an array with two elements per environment variable.
So for instance element 0 is memsize and element 1 is 0x08000000
for the environment variable memsize=0x08000000.

The code for prom_getenv() only skips one element when it's in
search for the next environment variable. It should of course
step two elements.

I found this error in two files and for both I include a patch to
fix the problem.

Signed-off-by: Freddy Spierenburg <freddy@dusktilldawn.nl>

-- 
$ cat ~/.signature
Freddy Spierenburg <freddy@dusktilldawn.nl>  http://freddy.snarl.nl/
GnuPG: 0x7941D1E1=C948 5851 26D2 FA5C 39F1  E588 6F17 FD5D 7941 D1E1
$ # Please read http://www.ietf.org/rfc/rfc2015.txt before complain!

[-- Attachment #1.2: prom.pnx8550.patch --]
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diff -Naur linux.orig/arch/mips/philips/pnx8550/common/prom.c linux/arch/mips/philips/pnx8550/common/prom.c
--- linux.orig/arch/mips/philips/pnx8550/common/prom.c	2006-03-22 15:25:58.000000000 +0000
+++ linux/arch/mips/philips/pnx8550/common/prom.c	2006-03-22 15:25:23.000000000 +0000
@@ -70,7 +70,7 @@
 		if(strncmp(envname, env->name, i) == 0) {
 			return(env->name + strlen(envname) + 1);
 		}
-		env++;
+		env+=2;
 	}
 	return(NULL);
 }

[-- Attachment #1.3: prom.au1000.patch --]
[-- Type: text/plain, Size: 406 bytes --]

diff -Naur linux.orig/arch/mips/au1000/common/prom.c linux/arch/mips/au1000/common/prom.c
--- linux.orig/arch/mips/au1000/common/prom.c	2006-03-22 15:11:09.000000000 +0000
+++ linux/arch/mips/au1000/common/prom.c	2006-03-22 15:16:22.000000000 +0000
@@ -97,7 +97,7 @@
 		if(strncmp(envname, env->name, i) == 0) {
 			return(env->name + strlen(envname) + 1);
 		}
-		env++;
+		env+=2;
 	}
 	return(NULL);
 }

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^ permalink raw reply	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2006-03-31 21:11 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2006-03-27  7:43 [PATCH] small time list process error in prom_getenv() Freddy Spierenburg
2006-03-27  8:32 ` Sergei Shtylylov
2006-03-27 18:44   ` [PATCH] Au1xx0: fix prom_getenv() to handle YAMON style environment Sergei Shtylylov
2006-03-28 14:54   ` [PATCH] rtc.h: fixes to make genrtc.c compilable Ralf Rösch
2006-03-28 15:12   ` Ralf Rösch
2006-03-28 15:14     ` Sergei Shtylylov
2006-03-30 15:02   ` [PATCH] small time list process error in prom_getenv() Sergei Shtylyov
2006-03-31 21:20   ` [PATCH] Au1550: make OSS drivers look pretty on loading Sergei Shtylyov

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