lkml.org 
[lkml]   [2019]   [Apr]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH V2] staging: fieldbus: anybus-s: consolidate wait_for_completion_timeout return handling
Date
wait_for_completion_timeout() returns unsigned long (0 on timeout or
remaining jiffies) not int - so rather than introducing an additional
variable simply wrap the completion into an if().

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

Problem located with experimental API conformance checking cocci script

V2: The original patch's logic was wrong as it was skipping the
fall-through if so using the fix proposed by Sven Van Asbroeck
<thesven73@gmail.com> - This solution also eliminates the need
to introduce an additional variable - Thanks !

Patch was compile-tested with. x86_64_defconfig + FIELDBUS_DEV=m,
HMS_ANYBUSS_BUS=m
(with an unrelated sparse warnings (cast to restricted __be16))

Patch is against 5.1-rc6 (localversion-next is next-20190426)

drivers/staging/fieldbus/anybuss/host.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/fieldbus/anybuss/host.c b/drivers/staging/fieldbus/anybuss/host.c
index e34d424..6227daf 100644
--- a/drivers/staging/fieldbus/anybuss/host.c
+++ b/drivers/staging/fieldbus/anybuss/host.c
@@ -1325,11 +1325,11 @@ anybuss_host_common_probe(struct device *dev,
* interrupt came in: ready to go !
*/
reset_deassert(cd);
- ret = wait_for_completion_timeout(&cd->card_boot, TIMEOUT);
- if (ret == 0)
+ if (!wait_for_completion_timeout(&cd->card_boot, TIMEOUT)) {
ret = -ETIMEDOUT;
- if (ret < 0)
goto err_reset;
+ }
+
/*
* according to the anybus docs, we're allowed to read these
* without handshaking / reserving the area
--
2.1.4
\
 
 \ /
  Last update: 2019-04-28 04:41    [W:0.044 / U:0.084 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site