i2c: at91: fixup return type of wait_for_completion_timeout
Return type of wait_for_completion_timeout is unsigned long not int. This
patch adds a timeout variable of appropriate type and fixes up the assignment.
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
diff --git a/drivers/i2c/busses/i2c-at91.c b/drivers/i2c/busses/i2c-at91.c
index b3a70e8..ff23d1b 100644
--- a/drivers/i2c/busses/i2c-at91.c
+++ b/drivers/i2c/busses/i2c-at91.c
@@ -381,6 +381,7 @@
static int at91_do_twi_transfer(struct at91_twi_dev *dev)
{
int ret;
+ unsigned long time_left;
bool has_unre_flag = dev->pdata->has_unre_flag;
dev_dbg(dev->dev, "transfer: %s %d bytes.\n",
@@ -436,9 +437,9 @@
}
}
- ret = wait_for_completion_timeout(&dev->cmd_complete,
- dev->adapter.timeout);
- if (ret == 0) {
+ time_left = wait_for_completion_timeout(&dev->cmd_complete,
+ dev->adapter.timeout);
+ if (time_left == 0) {
dev_err(dev->dev, "controller timed out\n");
at91_init_twi_bus(dev);
ret = -ETIMEDOUT;