From: Paul Mackerras <paulus@samba.org>
To: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Cc: jpoimboe@us.ibm.com, linuxppc-dev@ozlabs.org
Subject: Re: [PATCH] powerpc: Fix error path in kernel_thread function
Date: Thu, 9 Oct 2008 13:57:37 +1100 [thread overview]
Message-ID: <18669.29473.856007.689260@cargo.ozlabs.ibm.com> (raw)
In-Reply-To: <20081007161003.GA5727@yoda.jdub.homelinux.org>
Josh Boyer writes:
> From: Josh Poimboeuf <jpoimboe@us.ibm.com>
>
> The powerpc 32-bit and 64-bit kernel_thread functions don't properly
> propagate errors being returned by the clone syscall. (In the case of
> error, the syscall exit code returns a positive errno in r3 and sets
> the CR0[SO] bit.)
>
> This patch fixes that by negating r3 if CR0[SO] is set after the syscall.
>
> Signed-off-by: Josh Poimboeuf <jpoimboe@us.ibm.com>
> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: Paul Mackerras <paulus@samba.org>
next prev parent reply other threads:[~2008-10-09 2:57 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-07 16:10 [PATCH] powerpc: Fix error path in kernel_thread function Josh Boyer
2008-10-07 16:46 ` Josh Boyer
2008-10-07 18:30 ` Segher Boessenkool
2008-10-09 2:57 ` Paul Mackerras [this message]
2008-10-23 11:56 ` Josh Boyer
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