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authorWei Yongjun <yongjun_wei@trendmicro.com.cn>2013-05-07 02:19:25 +0000
committerDavid S. Miller <davem@davemloft.net>2013-05-08 13:13:30 -0700
commit155d940a78fd0761c2d73c5bd95a9dd287d58054 (patch)
tree515cd760a696f436a64ae0ae3c16151a128d4375 /drivers/net
parent228fb087a0098e9d4a2498f388762ff379eebae1 (diff)
sfc: fix return value check in efx_ptp_probe_channel()
In case of error, the function ptp_clock_register() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Reviewed-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/ethernet/sfc/ptp.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/ethernet/sfc/ptp.c b/drivers/net/ethernet/sfc/ptp.c
index 07f6baa15c0c..9a95abf2dedf 100644
--- a/drivers/net/ethernet/sfc/ptp.c
+++ b/drivers/net/ethernet/sfc/ptp.c
@@ -912,8 +912,10 @@ static int efx_ptp_probe_channel(struct efx_channel *channel)
ptp->phc_clock = ptp_clock_register(&ptp->phc_clock_info,
&efx->pci_dev->dev);
- if (!ptp->phc_clock)
+ if (IS_ERR(ptp->phc_clock)) {
+ rc = PTR_ERR(ptp->phc_clock);
goto fail3;
+ }
INIT_WORK(&ptp->pps_work, efx_ptp_pps_worker);
ptp->pps_workwq = create_singlethread_workqueue("sfc_pps");