git/linux-cryptodev-2.6
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git synced 2026-05-01 15:15:19 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/bridge: anx7625: use eld_mutex to protect access to connector->eld

Browse Source 
Reading access to connector->eld can happen at the same time the
drm_edid_to_eld() updates the data. Take the newly added eld_mutex in
order to protect connector->eld from concurrent access.

Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20241206-drm-connector-eld-mutex-v2-2-c9bce1ee8bea@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
This commit is contained in:
Dmitry Baryshkov
2024-12-06 11:43:05 +02:00
parent df7c8e3dde
commit e72bf423a6
1 changed files with 2 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/bridge/analogix/anx7625.c
View File

@@ -2002,8 +2002,10 @@ static int anx7625_audio_get_eld(struct device *dev, void *data,
memset(buf, 0, len);
} else {
dev_dbg(dev, "audio copy eld\n");
mutex_lock(&ctx->connector->eld_mutex);
memcpy(buf, ctx->connector->eld,
min(sizeof(ctx->connector->eld), len));
mutex_unlock(&ctx->connector->eld_mutex);
}
return 0;