diff mbox

[v2,1/2] linux-user: fix settime old value location

Message ID 20170118192428.2661-1-bobby.prani@gmail.com
State New
Headers show

Commit Message

Pranith Kumar Jan. 18, 2017, 7:24 p.m. UTC
From: Marc-André Lureau <marcandre.lureau@redhat.com>

old_value is the 4th argument of timer_settime(), not the 2nd.

CC: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
[pranith: review comments]
Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
---
 linux-user/syscall.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

Comments

Laurent Vivier Jan. 18, 2017, 7:59 p.m. UTC | #1
Le 18/01/2017 à 20:24, Pranith Kumar a écrit :
> From: Marc-André Lureau <marcandre.lureau@redhat.com>
> 
> old_value is the 4th argument of timer_settime(), not the 2nd.
> 
> CC: Laurent Vivier <laurent@vivier.eu>
> Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
> [pranith: review comments]
> Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
> Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
> ---
>  linux-user/syscall.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/linux-user/syscall.c b/linux-user/syscall.c
> index 7b77503f94..724607be43 100644
> --- a/linux-user/syscall.c
> +++ b/linux-user/syscall.c
> @@ -12027,7 +12027,9 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
>              target_to_host_itimerspec(&hspec_new, arg3);

as said by Peter in his first comment, target_to_host_itimerspec() can
return -TARGET_EFAULT. You should fix that too.

Thanks,
Laurent
Pranith Kumar Jan. 18, 2017, 8:03 p.m. UTC | #2
On Wed, Jan 18, 2017 at 2:59 PM, Laurent Vivier <laurent@vivier.eu> wrote:
> Le 18/01/2017 à 20:24, Pranith Kumar a écrit :
>> From: Marc-André Lureau <marcandre.lureau@redhat.com>
>>
>> old_value is the 4th argument of timer_settime(), not the 2nd.
>>
>> CC: Laurent Vivier <laurent@vivier.eu>
>> Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
>> [pranith: review comments]
>> Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
>> Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
>> ---
>>  linux-user/syscall.c | 4 +++-
>>  1 file changed, 3 insertions(+), 1 deletion(-)
>>
>> diff --git a/linux-user/syscall.c b/linux-user/syscall.c
>> index 7b77503f94..724607be43 100644
>> --- a/linux-user/syscall.c
>> +++ b/linux-user/syscall.c
>> @@ -12027,7 +12027,9 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
>>              target_to_host_itimerspec(&hspec_new, arg3);
>
> as said by Peter in his first comment, target_to_host_itimerspec() can
> return -TARGET_EFAULT. You should fix that too.

Hmm, shoddy job by me. I missed his comments from the first time. Will fix them.

Thanks,
diff mbox

Patch

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 7b77503f94..724607be43 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -12027,7 +12027,9 @@  abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
             target_to_host_itimerspec(&hspec_new, arg3);
             ret = get_errno(
                           timer_settime(htimer, arg2, &hspec_new, &hspec_old));
-            host_to_target_itimerspec(arg2, &hspec_old);
+            if (arg4 && host_to_target_itimerspec(arg4, &hspec_old)) {
+                goto efault;
+            }
         }
         break;
     }