diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2024-07-30 12:53:52 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2024-07-30 12:53:52 -0700 |
| commit | c91a7dee0555f6f9d3702d86312382e4c4729d0a (patch) | |
| tree | eb2663a5e93191c73fbf00a8ca6b811b41b63720 | |
| parent | 22f5468731491e53356ba7c028f0fdea20b18e2c (diff) | |
| parent | df615907f1bf907260af01ccb904d0e9304b5278 (diff) | |
Merge tag 'chrome-platform-fixes-for-v6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux
Pull chrome-platform fix from Tzung-Bi Shih:
"Fix a race condition that sends multiple host commands at a time"
* tag 'chrome-platform-fixes-for-v6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
platform/chrome: cros_ec_proto: Lock device when updating MKBP version
| -rw-r--r-- | drivers/platform/chrome/cros_ec_proto.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/platform/chrome/cros_ec_proto.c b/drivers/platform/chrome/cros_ec_proto.c index f776fd42244f..73f75958e15c 100644 --- a/drivers/platform/chrome/cros_ec_proto.c +++ b/drivers/platform/chrome/cros_ec_proto.c @@ -813,9 +813,11 @@ int cros_ec_get_next_event(struct cros_ec_device *ec_dev, if (ret == -ENOPROTOOPT) { dev_dbg(ec_dev->dev, "GET_NEXT_EVENT returned invalid version error.\n"); + mutex_lock(&ec_dev->lock); ret = cros_ec_get_host_command_version_mask(ec_dev, EC_CMD_GET_NEXT_EVENT, &ver_mask); + mutex_unlock(&ec_dev->lock); if (ret < 0 || ver_mask == 0) /* * Do not change the MKBP supported version if we can't |