devpts: Fix type for uid and gid params

Fix devpts to parse uid and gid params using the correct type so that they
get interpreted in the context of the user namespace.

Fixes: cc0876f ("vfs: Convert devpts to use the new mount API")
Reported-by: Debarshi Ray <dray@redhat.com>
Closes: containers/podman#25751
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://lore.kernel.org/r/759134.1743596274@warthog.procyon.org.uk
cc: Eric Sandeen <sandeen@redhat.com>
cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>

Author: dhowells

fs/devpts/inode.c

@@ -89,12 +89,12 @@ enum {
 };
 
 static const struct fs_parameter_spec devpts_param_specs[] = {
-	fsparam_u32	("gid",		Opt_gid),
+	fsparam_gid	("gid",		Opt_gid),
 	fsparam_s32	("max",		Opt_max),
 	fsparam_u32oct	("mode",	Opt_mode),
 	fsparam_flag	("newinstance",	Opt_newinstance),
 	fsparam_u32oct	("ptmxmode",	Opt_ptmxmode),
-	fsparam_u32	("uid",		Opt_uid),
+	fsparam_uid	("uid",		Opt_uid),
 	{}
 };