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WAN: flush tx_queue in hdlc_ppp to prevent panic on rmmod hw_driver.
authorKrzysztof Halasa <khc@pm.waw.pl>
Wed, 14 Apr 2010 14:09:52 +0000 (14:09 +0000)
committerDavid S. Miller <davem@davemloft.net>
Fri, 16 Apr 2010 22:41:03 +0000 (15:41 -0700)
commit31f634a63de7068c6a5dcb0d7b09b24b61a5cf88
tree1bdf1c9f73d692f3a4205464b1cb1dc27b1b3cb4tree | snapshot (tar.gz zip)
parent334656f33c43921cf383dfd0220dfd34376bcd98commit | diff
WAN: flush tx_queue in hdlc_ppp to prevent panic on rmmod hw_driver.

tx_queue is used as a temporary queue when not allowed to queue skb
directly to the hw device driver (which may sleep). Most paths flush
it before returning, but ppp_start() currently cannot. Make sure we
don't leave skbs pointing to a non-existent device.

Thanks to Michael Barkowski for reporting this problem.

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/wan/hdlc_ppp.c diff | blob | blame | history