Patch "staging: wilc1000: Fix problem with wrong vif index" has been added to the 4.11-stable tree

Patch "staging: wilc1000: Fix problem with wrong vif index" has been added to the 4.11-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    staging: wilc1000: Fix problem with wrong vif index

to the 4.11-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     staging-wilc1000-fix-problem-with-wrong-vif-index.patch
and it can be found in the queue-4.11 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 0e490657c7214cce33fbca3d88227298c5c968ae Mon Sep 17 00:00:00 2001
From: Aditya Shankar <aditya.shankar@microchip.com>
Date: Fri, 7 Apr 2017 17:24:58 +0530
Subject: staging: wilc1000: Fix problem with wrong vif index

From: Aditya Shankar <aditya.shankar@microchip.com>

commit 0e490657c7214cce33fbca3d88227298c5c968ae upstream.

The vif->idx value is always 0 for two interfaces.

wl->vif_num = 0;

loop {
     ...

     vif->idx = wl->vif_num;
     ...
     wl->vif_num = i;
      ....
     i++;
     ...
}

At present, vif->idx is assigned the value of wl->vif_num
at the beginning of this block and device is initialized
based on this index value.
In the next iteration, wl->vif_num is still 0 as it is only updated
later but gets assigned to vif->idx in the beginning. This causes problems
later when we try to reference a particular interface and also while
configuring the firmware.

This patch moves the assignment to vif->idx from the beginning
of the block to after wl->vif_num is updated with latest value of i.

Fixes: commit 735bb39ca3be ("staging: wilc1000: simplify vif[i]->ndev accesses")
Signed-off-by: Aditya Shankar <aditya.shankar@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/staging/wilc1000/linux_wlan.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/staging/wilc1000/linux_wlan.c
+++ b/drivers/staging/wilc1000/linux_wlan.c
@@ -1251,11 +1251,12 @@ int wilc_netdev_init(struct wilc **wilc,
 		else
 			strcpy(ndev->name, "p2p%d");
 
-		vif->idx = wl->vif_num;
 		vif->wilc = *wilc;
 		vif->ndev = ndev;
 		wl->vif[i] = vif;
 		wl->vif_num = i;
+		vif->idx = wl->vif_num;
+
 		ndev->netdev_ops = &wilc_netdev_ops;
 
 		{


Patches currently in stable-queue which might be from aditya.shankar@microchip.com are

queue-4.11/staging-wilc1000-fix-problem-with-wrong-vif-index.patch