[PATCH 5.0 05/95] staging: wilc1000: Avoid GFP_KERNEL allocation from atomic context.

Greg Kroah-Hartman
2019-05-09T19:01:14Z

From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>

commit ae26aa844679cdf660e12c7055f958cb90889eb6 upstream.

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>

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

--- a/drivers/staging/wilc1000/linux_wlan.c
+++ b/drivers/staging/wilc1000/linux_wlan.c
@@ -816,7 +816,7 @@ static void wilc_set_multicast_list(stru
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;