modpost: add NOFAIL to strdup call
diff mbox series

Message ID 20191015064906.13833-1-efremov@linux.com
State New
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Series
  • modpost: add NOFAIL to strdup call
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Commit Message

Denis Efremov Oct. 15, 2019, 6:49 a.m. UTC
Add NOFAIL check for the strdup call, since the function
allocates memory and can return NULL. All strdup calls in
modpost are checked with NOFAIL.

Signed-off-by: Denis Efremov <efremov@linux.com>
---
 scripts/mod/modpost.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Masahiro Yamada Oct. 17, 2019, midnight UTC | #1
On Tue, Oct 15, 2019 at 3:49 PM Denis Efremov <efremov@linux.com> wrote:
>
> Add NOFAIL check for the strdup call, since the function
> allocates memory and can return NULL. All strdup calls in
> modpost are checked with NOFAIL.
>
> Signed-off-by: Denis Efremov <efremov@linux.com>
> ---
>  scripts/mod/modpost.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
> index 936d3ad23c83..8e8975065cbc 100644
> --- a/scripts/mod/modpost.c
> +++ b/scripts/mod/modpost.c
> @@ -384,7 +384,7 @@ static struct symbol *sym_add_exported(const char *name, const char *namespace,
>                 }
>         }
>         free(s->namespace);
> -       s->namespace = namespace ? strdup(namespace) : NULL;
> +       s->namespace = namespace ? NOFAIL(strdup(namespace)) : NULL;

This is correct, but I will put it off
because otherwise if would cause a conflict against this patch:

https://lore.kernel.org/patchwork/patch/1138151/

That patch is adding NOFAIL().




>         s->preloaded = 0;
>         s->vmlinux   = is_vmlinux(mod->name);
>         s->kernel    = 0;
> --
> 2.21.0
>

Patch
diff mbox series

diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 936d3ad23c83..8e8975065cbc 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -384,7 +384,7 @@  static struct symbol *sym_add_exported(const char *name, const char *namespace,
 		}
 	}
 	free(s->namespace);
-	s->namespace = namespace ? strdup(namespace) : NULL;
+	s->namespace = namespace ? NOFAIL(strdup(namespace)) : NULL;
 	s->preloaded = 0;
 	s->vmlinux   = is_vmlinux(mod->name);
 	s->kernel    = 0;