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authorJinjie Ruan <ruanjinjie@huawei.com>2023-08-23 06:50:20 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-10-05 12:26:58 +0300
commit4d08c3d12b61022501989f9f071514d2d6f77c47 (patch)
tree07b0824c5ddfc0a088ceec32973f36c11402632d /drivers/misc
parent0113a99b8a75f307439c2950cec5b5dab818f35c (diff)
downloadlinux-4d08c3d12b61022501989f9f071514d2d6f77c47.tar.xz
misc: st_core: Do not call kfree_skb() under spin_lock_irqsave()
It is not allowed to call kfree_skb() from hardware interrupt context or with hardware interrupts being disabled. So replace kfree_skb() with dev_kfree_skb_irq() under spin_lock_irqsave(). Compile tested only. Fixes: 53618cc1e51e ("Staging: sources for ST core") Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com> Link: https://lore.kernel.org/r/20230823035020.1281892-1-ruanjinjie@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc')
-rw-r--r--drivers/misc/ti-st/st_core.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/misc/ti-st/st_core.c b/drivers/misc/ti-st/st_core.c
index c1a134bd8ba7..b878431553ab 100644
--- a/drivers/misc/ti-st/st_core.c
+++ b/drivers/misc/ti-st/st_core.c
@@ -15,6 +15,7 @@
#include <linux/skbuff.h>
#include <linux/ti_wilink_st.h>
+#include <linux/netdevice.h>
/*
* function pointer pointing to either,
@@ -429,7 +430,7 @@ static void st_int_enqueue(struct st_data_s *st_gdata, struct sk_buff *skb)
case ST_LL_AWAKE_TO_ASLEEP:
pr_err("ST LL is illegal state(%ld),"
"purging received skb.", st_ll_getstate(st_gdata));
- kfree_skb(skb);
+ dev_kfree_skb_irq(skb);
break;
case ST_LL_ASLEEP:
skb_queue_tail(&st_gdata->tx_waitq, skb);
@@ -438,7 +439,7 @@ static void st_int_enqueue(struct st_data_s *st_gdata, struct sk_buff *skb)
default:
pr_err("ST LL is illegal state(%ld),"
"purging received skb.", st_ll_getstate(st_gdata));
- kfree_skb(skb);
+ dev_kfree_skb_irq(skb);
break;
}
@@ -492,7 +493,7 @@ void st_tx_wakeup(struct st_data_s *st_data)
spin_unlock_irqrestore(&st_data->lock, flags);
break;
}
- kfree_skb(skb);
+ dev_kfree_skb_irq(skb);
spin_unlock_irqrestore(&st_data->lock, flags);
}
/* if wake-up is set in another context- restart sending */