From: Nathan Huckleberry <nhuck@google.com>
Cc: Nathan Huckleberry <nhuck@google.com>,
Dan Carpenter <error27@gmail.com>,
llvm@lists.linux.dev, Philipp Zabel <p.zabel@pengutronix.de>,
David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
NXP Linux Team <linux-imx@nxp.com>,
Nathan Chancellor <nathan@kernel.org>,
Nick Desaulniers <ndesaulniers@google.com>,
Tom Rix <trix@redhat.com>,
dri-devel@lists.freedesktop.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] drm/imx: imx-tve: Fix return type of imx_tve_connector_mode_valid
Date: Tue, 13 Sep 2022 13:55:44 -0700 [thread overview]
Message-ID: <20220913205544.155106-1-nhuck@google.com> (raw)
The mode_valid field in drm_connector_helper_funcs is expected to be of
type:
enum drm_mode_status (* mode_valid) (struct drm_connector *connector,
struct drm_display_mode *mode);
The mismatched return type breaks forward edge kCFI since the underlying
function definition does not match the function hook definition.
The return type of imx_tve_connector_mode_valid should be changed from
int to enum drm_mode_status.
Reported-by: Dan Carpenter <error27@gmail.com>
Link: https://github.com/ClangBuiltLinux/linux/issues/1703
Cc: llvm@lists.linux.dev
Signed-off-by: Nathan Huckleberry <nhuck@google.com>
---
drivers/gpu/drm/imx/imx-tve.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/imx/imx-tve.c b/drivers/gpu/drm/imx/imx-tve.c
index 6b34fac3f73a..ab4d1c878fda 100644
--- a/drivers/gpu/drm/imx/imx-tve.c
+++ b/drivers/gpu/drm/imx/imx-tve.c
@@ -218,8 +218,9 @@ static int imx_tve_connector_get_modes(struct drm_connector *connector)
return ret;
}
-static int imx_tve_connector_mode_valid(struct drm_connector *connector,
- struct drm_display_mode *mode)
+static enum drm_mode_status
+imx_tve_connector_mode_valid(struct drm_connector *connector,
+ struct drm_display_mode *mode)
{
struct imx_tve *tve = con_to_tve(connector);
unsigned long rate;
--
2.37.2.789.g6183377224-goog
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next reply other threads:[~2022-09-13 20:57 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-13 20:55 Nathan Huckleberry [this message]
2022-09-13 22:23 ` [PATCH] drm/imx: imx-tve: Fix return type of imx_tve_connector_mode_valid Fabio Estevam
2022-10-31 21:43 ` Nathan Chancellor
2022-11-01 13:41 ` Philipp Zabel
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