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[PATCH] staging: r8188eu: use GFP_ATOMIC under spinlock

From: Michael Straube <hidden>
Date: 2021-11-08 10:55:57
Also in: lkml
Subsystem: staging subsystem, the rest · Maintainers: Greg Kroah-Hartman, Linus Torvalds

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")
Signed-off-by: Michael Straube <redacted>
---
 drivers/staging/r8188eu/os_dep/mlme_linux.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/r8188eu/os_dep/mlme_linux.c b/drivers/staging/r8188eu/os_dep/mlme_linux.c
index a9b6ffdbf31a..f7ce724ebf87 100644
--- 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;
-- 
2.33.1
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