lkml.org 
[lkml]   [2004]   [May]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
SubjectRe: 2.6.6-rc3: modular DVB tda1004x broken
Linus Torvalds <torvalds@osdl.org> wrote:
>
>
>
> On Sat, 1 May 2004, Adrian Bunk wrote:
> >
> > It seems the DVB updates broke this.
> >
> > Please _undo_ the patch below.
>
> No, there's something wrong. Nobody should use a global "errno" variable,
> and we should fix the real bug (it's probably some buggy system call
> "interface" function that is being used).
>
> Can somebody who sees this problem please try to figure out where the
> buggy user of "errno" is?

It's using open() and lseek(), via KERNEL_SYSCALLS.

Maybe we should change __syscall_return() to return the -ve errno rather
than -1?


diff -puN include/asm-i386/unistd.h~a include/asm-i386/unistd.h
--- 25/include/asm-i386/unistd.h~a 2004-05-01 16:09:35.115389384 -0700
+++ 25-akpm/include/asm-i386/unistd.h 2004-05-01 16:09:49.513200584 -0700
@@ -295,10 +295,6 @@

#define __syscall_return(type, res) \
do { \
- if ((unsigned long)(res) >= (unsigned long)(-125)) { \
- errno = -(res); \
- res = -1; \
- } \
return (type) (res); \
} while (0)

_

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 14:02    [W:0.143 / U:0.164 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site