From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Date: Sun, 7 Apr 2019 12:58:43 +0000 (+0900)
Subject: staging: wilc1000: Avoid GFP_KERNEL allocation from atomic context.
X-Git-Tag: v5.2-rc1~153^2~144
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=ae26aa844679cdf660e12c7055f958cb90889eb6;p=thirdparty%2Flinux.git

staging: wilc1000: Avoid GFP_KERNEL allocation from atomic context.

Since wilc_set_multicast_list() is called with dev->addr_list_lock
spinlock held, we can't use GFP_KERNEL memory allocation.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Fixes: e624c58cf8eb ("staging: wilc1000: refactor code to avoid use of wilc_set_multicast_list global")
Cc: Ajay Singh <ajay.kathat@microchip.com>
Reviewed-by: Adham Abozaeid <adham.abozaeid@microchip.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/wilc1000/wilc_netdev.c b/drivers/staging/wilc1000/wilc_netdev.c
index 1787154ee0882..ba78c08a17f12 100644
--- a/drivers/staging/wilc1000/wilc_netdev.c
+++ b/drivers/staging/wilc1000/wilc_netdev.c
@@ -708,7 +708,7 @@ static void wilc_set_multicast_list(struct net_device *dev)
 		return;
 	}
 
-	mc_list = kmalloc_array(dev->mc.count, ETH_ALEN, GFP_KERNEL);
+	mc_list = kmalloc_array(dev->mc.count, ETH_ALEN, GFP_ATOMIC);
 	if (!mc_list)
 		return;