linux-kernel - [PATCH 1/4] staging: slicoss: return status of slic_link_event

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Date:	Thu, 17 Sep 2015 22:14:32 +0530
From:	Sudip Mukherjee <sudipm.mukherjee@...il.com>
To:	Lior Dotan <liodot@...il.com>,
	Christopher Harrer <charrer@...critech.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	linux-kernel@...r.kernel.org, devel@...verdev.osuosl.org,
	Sudip Mukherjee <sudipm.mukherjee@...il.com>
Subject: [PATCH 1/4] staging: slicoss: return status of slic_link_event_handler

slic_link_event_handler() issues command READ_LINK_STATUS to be executed
asynchronously, which is followed by UP configuration write command. But
it can fail while setting up the command and in that case the link will
not be up. Lets check the status and return it.

Signed-off-by: Sudip Mukherjee <sudip@...torindia.org>
---
 drivers/staging/slicoss/slicoss.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/slicoss/slicoss.c b/drivers/staging/slicoss/slicoss.c
index 8585970..b1a8b4b 100644
--- a/drivers/staging/slicoss/slicoss.c
+++ b/drivers/staging/slicoss/slicoss.c
@@ -1717,14 +1717,14 @@ static u32 slic_rcvqueue_reinsert(struct adapter *adapter, struct sk_buff *skb)
  * will also complete asynchronously.
  *
  */
-static void slic_link_event_handler(struct adapter *adapter)
+static int slic_link_event_handler(struct adapter *adapter)
 {
 	int status;
 	struct slic_shmem *pshmem;
 
 	if (adapter->state != ADAPT_UP) {
 		/* Adapter is not operational.  Ignore.  */
-		return;
+		return -ENODEV;
 	}
 
 	pshmem = (struct slic_shmem *)(unsigned long)adapter->phys_shmem;
@@ -1740,6 +1740,7 @@ static void slic_link_event_handler(struct adapter *adapter)
 		(u32) &pshmem->linkstatus,	/* no 4GB wrap guaranteed */
 				  0, 0, 0);
 #endif
+	return status;
 }
 
 static void slic_init_cleanup(struct adapter *adapter)
-- 
1.9.1

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