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| author | Philipp Zabel <[email protected]> | 2014-10-22 14:34:35 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2014-10-22 21:48:06 +0000 |
| commit | 81f35ffde0e95ee18de83646bbf93dda55d9cc8b (patch) | |
| tree | 418229836e8c17ee9085243e4797b8f61fdfad84 /drivers/net/xen-netback/interface.c | |
| parent | net: fix saving TX flow hash in sock for outgoing connections (diff) | |
| download | kernel-81f35ffde0e95ee18de83646bbf93dda55d9cc8b.tar.gz kernel-81f35ffde0e95ee18de83646bbf93dda55d9cc8b.zip | |
net: fec: ptp: fix NULL pointer dereference if ptp_clock is not set
Since commit 278d24047891 (net: fec: ptp: Enable PPS output based on ptp clock)
fec_enet_interrupt calls fec_ptp_check_pps_event unconditionally, which calls
into ptp_clock_event. If fep->ptp_clock is NULL, ptp_clock_event tries to
dereference the NULL pointer.
Since on i.MX53 fep->bufdesc_ex is not set, fec_ptp_init is never called,
and fep->ptp_clock is NULL, which reliably causes a kernel panic.
This patch adds a check for fep->ptp_clock == NULL in fec_enet_interrupt.
Signed-off-by: Philipp Zabel <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'drivers/net/xen-netback/interface.c')
0 files changed, 0 insertions, 0 deletions