From: Yangbo Lu <yangbo.lu@nxp.com>
To: linux-kernel@vger.kernel.org, devel@driverdev.osuosl.org,
netdev@vger.kernel.org,
Richard Cochran <richardcochran@gmail.com>,
"David S . Miller" <davem@davemloft.net>,
Ioana Radulescu <ruxandra.radulescu@nxp.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Andrew Lunn <andrew@lunn.ch>
Cc: Yangbo Lu <yangbo.lu@nxp.com>
Subject: [v2, 5/5] net: dpaa2: fix and improve dpaa2-ptp driver
Date: Sat, 29 Sep 2018 15:26:45 +0800 [thread overview]
Message-ID: <20180929072645.20027-5-yangbo.lu@nxp.com> (raw)
In-Reply-To: <20180929072645.20027-1-yangbo.lu@nxp.com>
This patch is to fix and improve dpaa2-ptp driver
in some places.
- Fixed the return for some functions.
- Replaced kzalloc with devm_kzalloc.
- Removed dev_set_drvdata(dev, NULL).
- Made ptp_dpaa2_caps const.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
---
Changes for v2:
- Added this patch.
---
drivers/net/ethernet/freescale/dpaa2/dpaa2-ptp.c | 25 ++++++++--------------
1 files changed, 9 insertions(+), 16 deletions(-)
diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-ptp.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-ptp.c
index c73eef2..84b942b 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-ptp.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-ptp.c
@@ -46,7 +46,7 @@ static int ptp_dpaa2_adjfreq(struct ptp_clock_info *ptp, s32 ppb)
mc_dev->mc_handle, tmr_add);
if (err)
dev_err(dev, "dprtc_set_freq_compensation err %d\n", err);
- return 0;
+ return err;
}
static int ptp_dpaa2_adjtime(struct ptp_clock_info *ptp, s64 delta)
@@ -61,17 +61,15 @@ static int ptp_dpaa2_adjtime(struct ptp_clock_info *ptp, s64 delta)
err = dprtc_get_time(mc_dev->mc_io, 0, mc_dev->mc_handle, &now);
if (err) {
dev_err(dev, "dprtc_get_time err %d\n", err);
- return 0;
+ return err;
}
now += delta;
err = dprtc_set_time(mc_dev->mc_io, 0, mc_dev->mc_handle, now);
- if (err) {
+ if (err)
dev_err(dev, "dprtc_set_time err %d\n", err);
- return 0;
- }
- return 0;
+ return err;
}
static int ptp_dpaa2_gettime(struct ptp_clock_info *ptp, struct timespec64 *ts)
@@ -87,12 +85,12 @@ static int ptp_dpaa2_gettime(struct ptp_clock_info *ptp, struct timespec64 *ts)
err = dprtc_get_time(mc_dev->mc_io, 0, mc_dev->mc_handle, &ns);
if (err) {
dev_err(dev, "dprtc_get_time err %d\n", err);
- return 0;
+ return err;
}
ts->tv_sec = div_u64_rem(ns, 1000000000, &remainder);
ts->tv_nsec = remainder;
- return 0;
+ return err;
}
static int ptp_dpaa2_settime(struct ptp_clock_info *ptp,
@@ -111,10 +109,10 @@ static int ptp_dpaa2_settime(struct ptp_clock_info *ptp,
err = dprtc_set_time(mc_dev->mc_io, 0, mc_dev->mc_handle, ns);
if (err)
dev_err(dev, "dprtc_set_time err %d\n", err);
- return 0;
+ return err;
}
-static struct ptp_clock_info ptp_dpaa2_caps = {
+static const struct ptp_clock_info ptp_dpaa2_caps = {
.owner = THIS_MODULE,
.name = "DPAA2 PTP Clock",
.max_adj = 512000,
@@ -136,7 +134,7 @@ static int dpaa2_ptp_probe(struct fsl_mc_device *mc_dev)
u32 tmr_add = 0;
int err;
- ptp_dpaa2 = kzalloc(sizeof(*ptp_dpaa2), GFP_KERNEL);
+ ptp_dpaa2 = devm_kzalloc(dev, sizeof(*ptp_dpaa2), GFP_KERNEL);
if (!ptp_dpaa2)
return -ENOMEM;
@@ -182,8 +180,6 @@ static int dpaa2_ptp_probe(struct fsl_mc_device *mc_dev)
err_free_mcp:
fsl_mc_portal_free(mc_dev->mc_io);
err_exit:
- kfree(ptp_dpaa2);
- dev_set_drvdata(dev, NULL);
return err;
}
@@ -198,9 +194,6 @@ static int dpaa2_ptp_remove(struct fsl_mc_device *mc_dev)
dprtc_close(mc_dev->mc_io, 0, mc_dev->mc_handle);
fsl_mc_portal_free(mc_dev->mc_io);
- kfree(ptp_dpaa2);
- dev_set_drvdata(dev, NULL);
-
return 0;
}
--
1.7.1
next prev parent reply other threads:[~2018-09-29 7:30 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-29 7:26 [v2, 1/5] net: dpaa2: move DPAA2 PTP driver out of staging/ Yangbo Lu
2018-09-29 7:26 ` [v2, 2/5] MAINTAINERS: update files maintained under DPAA2 PTP/ETHERNET Yangbo Lu
2018-09-29 7:26 ` [v2, 3/5] net: dpaa2: rename rtc as ptp in dpaa2-ptp driver Yangbo Lu
2018-09-29 7:26 ` [v2, 4/5] net: dpaa2: remove unused code for dprtc Yangbo Lu
2018-09-29 7:26 ` Yangbo Lu [this message]
2018-09-29 19:46 ` [v2, 1/5] net: dpaa2: move DPAA2 PTP driver out of staging/ Andrew Lunn
2018-10-08 3:11 ` Y.b. Lu
2018-10-08 7:50 ` Y.b. Lu
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