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slimbus: qcom-ctrl: use 'time_left' variable with wait_for_completion_timeout()

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There is a confusing pattern in the kernel to use a variable named 'timeout' to
store the result of wait_for_completion_timeout() causing patterns like:

	timeout = wait_for_completion_timeout(...)
	if (!timeout) return -ETIMEDOUT;

with all kinds of permutations. Use 'time_left' as a variable to make the code
self explaining.

Fix to the proper variable type 'unsigned long' while here.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Link: https://lore.kernel.org/r/20240902141004.70048-3-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Wolfram Sang 2024-09-02 15:10:02 +01:00 committed by Greg Kroah-Hartman
parent eee75a3a3b
commit 9c6fd5fc98
1 changed files with 4 additions and 3 deletions
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7
drivers/slimbus/qcom-ctrl.c
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@ -330,7 +330,8 @@ static int qcom_xfer_msg(struct slim_controller *sctrl,
void *pbuf = slim_alloc_txbuf(ctrl, txn, &done);
unsigned long ms = txn->rl + HZ;
u8 *puc;
int ret = 0, timeout, retries = QCOM_BUF_ALLOC_RETRIES;
int ret = 0, retries = QCOM_BUF_ALLOC_RETRIES;
unsigned long time_left;
u8 la = txn->la;
u32 *head;
/* HW expects length field to be excluded */
@ -374,9 +375,9 @@ static int qcom_xfer_msg(struct slim_controller *sctrl,
memcpy(puc, txn->msg->wbuf, txn->msg->num_bytes);
qcom_slim_queue_tx(ctrl, head, txn->rl, MGR_TX_MSG);
timeout = wait_for_completion_timeout(&done, msecs_to_jiffies(ms));
time_left = wait_for_completion_timeout(&done, msecs_to_jiffies(ms));
if (!timeout) {
if (!time_left) {
dev_err(ctrl->dev, "TX timed out:MC:0x%x,mt:0x%x", txn->mc,
txn->mt);
ret = -ETIMEDOUT;