DORMANTno replies LANDED

Landed in mainline as 55cdf7d7b2a1 on 2021-08-26.

[PATCH] staging: r8188eu: use GFP_ATOMIC under spinlock

From: Michael Straube <hidden>
Date: 2021-08-19 15:30:23
Also in: lkml
Subsystem: staging subsystem, the rest · Maintainers: Greg Kroah-Hartman, Linus Torvalds

kmalloc() in function update_bcn_wps_ie() is called under a spinlock
so the allocation have to be atomic.

-> update_beacon() <- takes a spinlock
   -> update_bcn_vendor_spec_ie()
      -> update_bcn_wps_ie()

Fixes: 79f712ea994de ("staging: r8188eu: Remove wrappers for kalloc() and kzalloc()")
Signed-off-by: Michael Straube <redacted>
---
 drivers/staging/r8188eu/core/rtw_ap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/r8188eu/core/rtw_ap.c b/drivers/staging/r8188eu/core/rtw_ap.c
index 1f3aa0092ef9..41b5668d080b 100644
--- a/drivers/staging/r8188eu/core/rtw_ap.c
+++ b/drivers/staging/r8188eu/core/rtw_ap.c
@@ -1192,7 +1192,7 @@ static void update_bcn_wps_ie(struct adapter *padapter)
 	remainder_ielen = ielen - wps_offset - wps_ielen;
 
 	if (remainder_ielen > 0) {
-		pbackup_remainder_ie = kmalloc(remainder_ielen, GFP_KERNEL);
+		pbackup_remainder_ie = kmalloc(remainder_ielen, GFP_ATOMIC);
 		if (pbackup_remainder_ie)
 			memcpy(pbackup_remainder_ie, premainder_ie, remainder_ielen);
 	}
-- 
2.32.0
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help