Re: [PATCH 12/15] i2c: qcom-geni: use 'time_left' variable with wait_for_completion_timeout()

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On 27/04/2024 21:36, Wolfram Sang wrote:
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@xxxxxxxxxxxxxxxxxxxx>
---
  drivers/i2c/busses/i2c-qcom-geni.c | 7 ++++---
  1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c
index 090b4846ed62..0a8b95ce35f7 100644
--- a/drivers/i2c/busses/i2c-qcom-geni.c
+++ b/drivers/i2c/busses/i2c-qcom-geni.c
@@ -586,7 +586,8 @@ static int geni_i2c_gpi_xfer(struct geni_i2c_dev *gi2c, struct i2c_msg msgs[], i
  {
  	struct dma_slave_config config = {};
  	struct gpi_i2c_config peripheral = {};
-	int i, ret = 0, timeout;
+	int i, ret = 0;
+	unsigned long time_left;
  	dma_addr_t tx_addr, rx_addr;
  	void *tx_buf = NULL, *rx_buf = NULL;
  	const struct geni_i2c_clk_fld *itr = gi2c->clk_fld;
@@ -629,8 +630,8 @@ static int geni_i2c_gpi_xfer(struct geni_i2c_dev *gi2c, struct i2c_msg msgs[], i
dma_async_issue_pending(gi2c->tx_c); - timeout = wait_for_completion_timeout(&gi2c->done, XFER_TIMEOUT);
-		if (!timeout)
+		time_left = wait_for_completion_timeout(&gi2c->done, XFER_TIMEOUT);
+		if (!time_left)
  			gi2c->err = -ETIMEDOUT;
if (gi2c->err) {
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@xxxxxxxxxx>




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