Re: [PATCH git latest] drivers/net: fixing a datarace related toupdate_stats()

From: Francois Romieu
Date: Sat Sep 27 2008 - 17:44:58 EST


(Please Cc: netdev@xxxxxxxxxxxxxxx)

Lin Tan <tammy000@xxxxxxxxx> :
[drivers/net/pcmcia/3c589_cs.c race]
> As indicated by the following comment, a lock must be held before calling
> function update_stats(). This rule is followed in some cases, but not in
> others. For example, the lock is held when the function is called in function
> el3_get_stats(), but the lock is NOT held when called in el3_close(). It can
> cause potential data races.

I would not bet that the irq handler does not race with el3_close()
in the first place. Could you dig it ?

--
Ueimor
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