openwrt/target/linux/bcm27xx/patches-6.6/950-1360-misc-rp1-pio-Fix-parameter-checks-wihout-client.patch
John Audia f4c5d0e77e bcm27xx: patches: cherry-pick for RP1 kmods
Cherry-pick patches to support building RP1 modules.

Signed-off-by: John Audia <therealgraysky@proton.me>
Link: https://github.com/openwrt/openwrt/pull/17233
Signed-off-by: Robert Marko <robimarko@gmail.com>
(cherry picked from commit 613dd79d5e)
2024-12-28 14:11:52 +01:00

26 lines
832 B
Diff

From 3687701e8d252864f440f91f1aedf8ffd58d6ee6 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.com>
Date: Mon, 25 Nov 2024 21:51:13 +0000
Subject: [PATCH] misc: rp1-pio: Fix parameter checks wihout client
Passing bad parameters to an API call without a pio pointer will cause
a NULL pointer exception when the persistent error is set. Guard
against that.
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
---
include/linux/pio_rp1.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/include/linux/pio_rp1.h
+++ b/include/linux/pio_rp1.h
@@ -20,7 +20,7 @@
#endif
#define bad_params_if(client, test) \
- ({ bool f = (test); if (f) pio_set_error(client, -EINVAL); \
+ ({ bool f = (test); if (f && client) pio_set_error(client, -EINVAL); \
if (f && PARAM_WARNINGS_ENABLED) WARN_ON((test)); \
f; })