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staging: nvec: add ability to ignore EC responses in sync writes

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In case we just want to submit a message to the EC but are not
interested in its response, we can free the response buffer early.

Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Link: https://lore.kernel.org/r/20240406123123.37148-2-marvin24@gmx.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Marc Dietrich 2024-04-06 14:31:19 +02:00 committed by Greg Kroah-Hartman
parent 18f44de63f
commit 244b6e92bd
1 changed files with 7 additions and 2 deletions
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5
drivers/staging/nvec/nvec.c
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@ -300,7 +300,9 @@ int nvec_write_sync(struct nvec_chip *nvec,
{
mutex_lock(&nvec->sync_write_mutex);
if (msg != NULL)
*msg = NULL;
nvec->sync_write_pending = (data[1] << 8) + data[0];
if (nvec_write_async(nvec, data, size) < 0) {
@ -320,7 +322,10 @@ int nvec_write_sync(struct nvec_chip *nvec,
dev_dbg(nvec->dev, "nvec_sync_write: pong!\n");
if (msg != NULL)
*msg = nvec->last_sync_msg;
else
nvec_msg_free(nvec, nvec->last_sync_msg);
mutex_unlock(&nvec->sync_write_mutex);