From: Philipp Stanner <pstanner@redhat.com>
To: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>,
Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org,
linux-kernel@vger.kernel.org,
Philipp Stanner <pstanner@redhat.com>,
Dave Airlie <airlied@redhat.com>
Subject: [PATCH] drivers/video/fbdev: use new array-copying-wrapper
Date: Thu, 2 Nov 2023 20:24:03 +0100 [thread overview]
Message-ID: <20231102192402.53721-2-pstanner@redhat.com> (raw)
viafbdev.c utilizes memdup_user() to copy an array from userspace.
There is a new wrapper, specifically designed for copying arrays. Use
this one instead.
Suggested-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Philipp Stanner <pstanner@redhat.com>
---
drivers/video/fbdev/via/viafbdev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/video/fbdev/via/viafbdev.c b/drivers/video/fbdev/via/viafbdev.c
index 58868f8880d6..a52b1ba43a48 100644
--- a/drivers/video/fbdev/via/viafbdev.c
+++ b/drivers/video/fbdev/via/viafbdev.c
@@ -574,7 +574,7 @@ static int viafb_ioctl(struct fb_info *info, u_int cmd, u_long arg)
break;
case VIAFB_SET_GAMMA_LUT:
- viafb_gamma_table = memdup_user(argp, 256 * sizeof(u32));
+ viafb_gamma_table = memdup_array_user(argp, 256, sizeof(u32));
if (IS_ERR(viafb_gamma_table))
return PTR_ERR(viafb_gamma_table);
viafb_set_gamma_table(viafb_bpp, viafb_gamma_table);
--
2.41.0
next reply other threads:[~2023-11-02 19:25 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-02 19:24 Philipp Stanner [this message]
2023-11-05 18:17 ` Helge Deller
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