media: ti: cal: use 'time_left' variable with wait_event_timeout()

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

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

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

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

diff --git a/drivers/media/platform/ti/cal/cal.c b/drivers/media/platform/ti/cal/cal.c
index 528909a..5c2c041 100644 (file)
--- a/drivers/media/platform/ti/cal/cal.c
+++ b/drivers/media/platform/ti/cal/cal.c
@@ -549,7 +549,7 @@ void cal_ctx_start(struct cal_ctx *ctx)
 void cal_ctx_stop(struct cal_ctx *ctx)
 {
        struct cal_camerarx *phy = ctx->phy;
-       long timeout;
+       long time_left;
 
        WARN_ON(phy->vc_enable_count[ctx->vc] == 0);
 
@@ -565,9 +565,9 @@ void cal_ctx_stop(struct cal_ctx *ctx)
        ctx->dma.state = CAL_DMA_STOP_REQUESTED;
        spin_unlock_irq(&ctx->dma.lock);
 
-       timeout = wait_event_timeout(ctx->dma.wait, cal_ctx_wr_dma_stopped(ctx),
-                                    msecs_to_jiffies(500));
-       if (!timeout) {
+       time_left = wait_event_timeout(ctx->dma.wait, cal_ctx_wr_dma_stopped(ctx),
+                                      msecs_to_jiffies(500));
+       if (!time_left) {
                ctx_err(ctx, "failed to disable dma cleanly\n");
                cal_ctx_wr_dma_disable(ctx);
        }