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Subject[PATCH] i2c-designware: fixup of wait_for_completion_timeout return handling
Date
return type of wait_for_completion_timeout is unsigned long not int. 
An appropriate return variable is introduced and assignment fixed up.

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
---

Patch was compile tested with x86_64_defconfig +
CONFIG_X86_AMD_PLATFORM_DEVICE=y, CONFIG_I2C_DESIGNWARE_PLATFORM=m
(implies CONFIG_I2C_DESIGNWARE_CORE=y)

Patch is against 3.19.0-rc7 (localversion-next is -next-20150209)

drivers/i2c/busses/i2c-designware-core.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/i2c/busses/i2c-designware-core.c b/drivers/i2c/busses/i2c-designware-core.c
index 6e25c01..05934e0 100644
--- a/drivers/i2c/busses/i2c-designware-core.c
+++ b/drivers/i2c/busses/i2c-designware-core.c
@@ -623,6 +623,7 @@ i2c_dw_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num)
{
struct dw_i2c_dev *dev = i2c_get_adapdata(adap);
int ret;
+ unsigned int timeout;

dev_dbg(dev->dev, "%s: msgs: %d\n", __func__, num);

@@ -656,8 +657,8 @@ i2c_dw_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num)
i2c_dw_xfer_init(dev);

/* wait for tx to complete */
- ret = wait_for_completion_timeout(&dev->cmd_complete, HZ);
- if (ret == 0) {
+ timeout = wait_for_completion_timeout(&dev->cmd_complete, HZ);
+ if (timeout == 0) {
dev_err(dev->dev, "controller timed out\n");
/* i2c_dw_init implicitly disables the adapter */
i2c_dw_init(dev);
--
1.7.10.4


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