coredump: auto cleanup argv

to prepare for a simpler exit path.

Link: https://lore.kernel.org/20250612-work-coredump-massage-v1-17-315c0c34ba94@kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>

diff --git a/fs/coredump.c b/fs/coredump.c
index dea4823b55b800d8ced1750821d2f07b7dc8ff5c..68da77d00170cf8ca486009de54b3033c84bef6a 100644 (file)
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -1076,7 +1076,7 @@ void vfs_coredump(const kernel_siginfo_t *siginfo)
        const struct cred *old_cred;
        struct cred *cred;
        int retval = 0;
-       size_t *argv = NULL;
+       size_t *argv __free(kfree) = NULL;
        int argc = 0;
        struct coredump_params cprm = {
                .siginfo = siginfo,
@@ -1189,7 +1189,6 @@ close_fail:
                atomic_dec(&core_pipe_count);
        }
 fail_unlock:
-       kfree(argv);
        kfree(cn.corename);
        coredump_finish(cn.core_dumped);
        revert_creds(old_cred);