[PATCH 2/3 RFC] ath10k: wmi: match wait_for_completion_timeout return type

From: Nicholas Mc Guire
Date: Thu Mar 12 2015 - 11:54:09 EST


Return type of wait_for_completion_timeout is unsigned long not int.
An appropriately named unsigned long is added and the assignments fixed up.
Rather than returning 0 (timeout) or a more or less random remaining time
(completion success) this return 0 or 1 which also resolves the type of the
functions being int.

Signed-off-by: Nicholas Mc Guire <hofrat@xxxxxxxxx>
---

Checking the call-sites of ath10k_wmi_wait_for_unified_ready and
ath10k_wmi_wait_for_service_ready the positive return value (remaining
time in jiffies) is never passed up the call-chain nor used so it is
cleaner to treat this like a boolean success/fail only (actually the two
functions should probably be of type bool - but that does not seem to be
common practice in the ath10k code base)

Patch was only compile tested with x86_64_defconfig + CONFIG_ATH_CARDS=m,
CONFIG_ATH10K=m

Patch is against 4.0-rc3 (localversion-next is -next-20150312)
:
drivers/net/wireless/ath/ath10k/wmi.c | 20 ++++++++++++--------
1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index c7ea77e..a1cdcba 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -884,20 +884,24 @@ void ath10k_wmi_put_wmi_channel(struct wmi_channel *ch,

int ath10k_wmi_wait_for_service_ready(struct ath10k *ar)
{
- int ret;
+ unsigned long time_left;

- ret = wait_for_completion_timeout(&ar->wmi.service_ready,
- WMI_SERVICE_READY_TIMEOUT_HZ);
- return ret;
+ time_left = wait_for_completion_timeout(&ar->wmi.service_ready,
+ WMI_SERVICE_READY_TIMEOUT_HZ);
+ if(!time_left)
+ return 0;
+ return 1;
}

int ath10k_wmi_wait_for_unified_ready(struct ath10k *ar)
{
- int ret;
+ unsigned long time_left;

- ret = wait_for_completion_timeout(&ar->wmi.unified_ready,
- WMI_UNIFIED_READY_TIMEOUT_HZ);
- return ret;
+ time_left = wait_for_completion_timeout(&ar->wmi.unified_ready,
+ WMI_UNIFIED_READY_TIMEOUT_HZ);
+ if(!time_left)
+ return 0;
+ return 1;
}

struct sk_buff *ath10k_wmi_alloc_skb(struct ath10k *ar, u32 len)
--
1.7.10.4

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