diff mbox

fix handling of wait_for_completion_timeout result

Message ID 1419680930-9052-1-git-send-email-der.herr@hofr.at
State Superseded
Headers show

Commit Message

Nicholas Mc Guire Dec. 27, 2014, 11:48 a.m. UTC
wati_for_completion_timeout does not return negative values so 
"result" handlin here should be simplified to cover the actually
possible cases only.

patch was only compile tested for imx_v6_v7_defconfig 

patch is against 3.19.0-rc1 -next-20141226

Signed-off-by: Nicholas Mc Guire <der.herr@hofr.at>
---
 drivers/i2c/busses/i2c-imx.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
diff mbox

Patch

diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
index 7f3a9fe..2be7d9d 100644
--- a/drivers/i2c/busses/i2c-imx.c
+++ b/drivers/i2c/busses/i2c-imx.c
@@ -628,9 +628,9 @@  static int i2c_imx_dma_write(struct imx_i2c_struct *i2c_imx,
 	result = wait_for_completion_timeout(
 				&i2c_imx->dma->cmd_complete,
 				msecs_to_jiffies(DMA_TIMEOUT));
-	if (result <= 0) {
+	if (result == 0) {
 		dmaengine_terminate_all(dma->chan_using);
-		return result ?: -ETIMEDOUT;
+		return -ETIMEDOUT;
 	}
 
 	/* Waiting for transfer complete. */
@@ -686,9 +686,9 @@  static int i2c_imx_dma_read(struct imx_i2c_struct *i2c_imx,
 	result = wait_for_completion_timeout(
 				&i2c_imx->dma->cmd_complete,
 				msecs_to_jiffies(DMA_TIMEOUT));
-	if (result <= 0) {
+	if (result == 0) {
 		dmaengine_terminate_all(dma->chan_using);
-		return result ?: -ETIMEDOUT;
+		return -ETIMEDOUT;
 	}
 
 	/* waiting for transfer complete. */