staging: r8188eu: use GFP_ATOMIC under spinlock

In function rtw_report_sec_ie() kzalloc() is called under a spinlock,
so the allocation have to be atomic.

Call tree:

-> rtw_select_and_join_from_scanned_queue() <- takes a spinlock
   -> rtw_joinbss_cmd()
      -> rtw_restruct_sec_ie()
         -> rtw_report_sec_ie()

Fixes: 2b42bd58b321 ("staging: r8188eu: introduce new os_dep dir for RTL8188eu driver")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20211108105537.31655-1-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/r8188eu/os_dep/mlme_linux.c b/drivers/staging/r8188eu/os_dep/mlme_linux.c
index a9b6ffdbf31ab94a5c10feb0b67438518197de6d..f7ce724ebf87ed5f3a0c298aec7fc690cb3a989a 100644 (file)
--- a/drivers/staging/r8188eu/os_dep/mlme_linux.c
+++ b/drivers/staging/r8188eu/os_dep/mlme_linux.c
@@ -112,7 +112,7 @@ void rtw_report_sec_ie(struct adapter *adapter, u8 authmode, u8 *sec_ie)
 
        buff = NULL;
        if (authmode == _WPA_IE_ID_) {
-               buff = kzalloc(IW_CUSTOM_MAX, GFP_KERNEL);
+               buff = kzalloc(IW_CUSTOM_MAX, GFP_ATOMIC);
                if (!buff)
                        return;
                p = buff;