diff mbox series

selftests/bpf: fix fclose/pclose mismatch

Message ID 20211026143409.42666-1-andrea.righi@canonical.com (mailing list archive)
State Accepted
Commit f48ad69097fe79d1de13c4d8fef556d4c11c5e68
Headers show
Series selftests/bpf: fix fclose/pclose mismatch | expand

Commit Message

Andrea Righi Oct. 26, 2021, 2:34 p.m. UTC
Make sure to use pclose() to properly close the pipe opened by popen().

Fixes: 81f77fd0deeb ("bpf: add selftest for stackmap with BPF_F_STACK_BUILD_ID")
Signed-off-by: Andrea Righi <andrea.righi@canonical.com>
---
 tools/testing/selftests/bpf/test_progs.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Shuah Khan Oct. 26, 2021, 5:47 p.m. UTC | #1
On 10/26/21 8:34 AM, Andrea Righi wrote:
> Make sure to use pclose() to properly close the pipe opened by popen().
> 
> Fixes: 81f77fd0deeb ("bpf: add selftest for stackmap with BPF_F_STACK_BUILD_ID")
> Signed-off-by: Andrea Righi <andrea.righi@canonical.com>
> ---
>   tools/testing/selftests/bpf/test_progs.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/tools/testing/selftests/bpf/test_progs.c b/tools/testing/selftests/bpf/test_progs.c
> index cc1cd240445d..e3fea6f281e4 100644
> --- a/tools/testing/selftests/bpf/test_progs.c
> +++ b/tools/testing/selftests/bpf/test_progs.c
> @@ -370,7 +370,7 @@ int extract_build_id(char *build_id, size_t size)
>   
>   	if (getline(&line, &len, fp) == -1)
>   		goto err;
> -	fclose(fp);
> +	pclose(fp);
>   
>   	if (len > size)
>   		len = size;
> @@ -379,7 +379,7 @@ int extract_build_id(char *build_id, size_t size)
>   	free(line);
>   	return 0;
>   err:
> -	fclose(fp);
> +	pclose(fp);
>   	return -1;
>   }
>   
> 

Thank you for the patch. The return logic could be simpler
doing out handling common for error and success path with
just one call to close. Not related to this change though.

Adding bpf maintainers to the thread

Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>

thanks,
-- Shuah
Alexei Starovoitov Oct. 26, 2021, 5:54 p.m. UTC | #2
On Tue, Oct 26, 2021 at 10:47 AM Shuah Khan <skhan@linuxfoundation.org> wrote:
>
> On 10/26/21 8:34 AM, Andrea Righi wrote:
> > Make sure to use pclose() to properly close the pipe opened by popen().
> >
> > Fixes: 81f77fd0deeb ("bpf: add selftest for stackmap with BPF_F_STACK_BUILD_ID")
> > Signed-off-by: Andrea Righi <andrea.righi@canonical.com>
> > ---
> >   tools/testing/selftests/bpf/test_progs.c | 4 ++--
> >   1 file changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/tools/testing/selftests/bpf/test_progs.c b/tools/testing/selftests/bpf/test_progs.c
> > index cc1cd240445d..e3fea6f281e4 100644
> > --- a/tools/testing/selftests/bpf/test_progs.c
> > +++ b/tools/testing/selftests/bpf/test_progs.c
> > @@ -370,7 +370,7 @@ int extract_build_id(char *build_id, size_t size)
> >
> >       if (getline(&line, &len, fp) == -1)
> >               goto err;
> > -     fclose(fp);
> > +     pclose(fp);
> >
> >       if (len > size)
> >               len = size;
> > @@ -379,7 +379,7 @@ int extract_build_id(char *build_id, size_t size)
> >       free(line);
> >       return 0;
> >   err:
> > -     fclose(fp);
> > +     pclose(fp);
> >       return -1;
> >   }
> >
> >
>
> Thank you for the patch. The return logic could be simpler
> doing out handling common for error and success path with
> just one call to close. Not related to this change though.
>
> Adding bpf maintainers to the thread

Ohh. That's odd.
I see the patch in:
https://patchwork.kernel.org/project/netdevbpf/list/?delegate=121173
but not in my gmail.
vger is probably slow.
Martin KaFai Lau Oct. 29, 2021, 4:56 a.m. UTC | #3
On Tue, Oct 26, 2021 at 04:34:09PM +0200, Andrea Righi wrote:
> Make sure to use pclose() to properly close the pipe opened by popen().
Acked-by: Martin KaFai Lau <kafai@fb.com>
patchwork-bot+netdevbpf@kernel.org Oct. 29, 2021, 3:50 p.m. UTC | #4
Hello:

This patch was applied to bpf/bpf-next.git (master)
by Daniel Borkmann <daniel@iogearbox.net>:

On Tue, 26 Oct 2021 16:34:09 +0200 you wrote:
> Make sure to use pclose() to properly close the pipe opened by popen().
> 
> Fixes: 81f77fd0deeb ("bpf: add selftest for stackmap with BPF_F_STACK_BUILD_ID")
> Signed-off-by: Andrea Righi <andrea.righi@canonical.com>
> ---
>  tools/testing/selftests/bpf/test_progs.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

Here is the summary with links:
  - selftests/bpf: fix fclose/pclose mismatch
    https://git.kernel.org/bpf/bpf-next/c/f48ad69097fe

You are awesome, thank you!
diff mbox series

Patch

diff --git a/tools/testing/selftests/bpf/test_progs.c b/tools/testing/selftests/bpf/test_progs.c
index cc1cd240445d..e3fea6f281e4 100644
--- a/tools/testing/selftests/bpf/test_progs.c
+++ b/tools/testing/selftests/bpf/test_progs.c
@@ -370,7 +370,7 @@  int extract_build_id(char *build_id, size_t size)
 
 	if (getline(&line, &len, fp) == -1)
 		goto err;
-	fclose(fp);
+	pclose(fp);
 
 	if (len > size)
 		len = size;
@@ -379,7 +379,7 @@  int extract_build_id(char *build_id, size_t size)
 	free(line);
 	return 0;
 err:
-	fclose(fp);
+	pclose(fp);
 	return -1;
 }