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| author | Alexandru Ardelean <alexandru.ardelean@analog.com> | 2020-11-19 17:49:03 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-12-09 19:59:00 +0100 |
| commit | 74e71964b1a9ffd34fa4b6ec8f2fa13e7cf0ac7a (patch) | |
| tree | 3c00d8b154ce46700c3ba3008b38377021ed70d1 /drivers/uio | |
| parent | d57801c45f53e3da999e2a0beb932717fe335c41 (diff) | |
| download | lwn-74e71964b1a9ffd34fa4b6ec8f2fa13e7cf0ac7a.tar.gz lwn-74e71964b1a9ffd34fa4b6ec8f2fa13e7cf0ac7a.zip | |
uio: uio_hv_generic: use devm_kzalloc() for private data alloc
This is a minor cleanup for the management of the private object of this
driver. The allocation can be tied to the life-time of the hv_device
object.
This cleans up a bit the exit & error paths, since the object doesn't need
to be explicitly free'd anymore.
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Link: https://lore.kernel.org/r/20201119154903.82099-4-alexandru.ardelean@analog.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/uio')
| -rw-r--r-- | drivers/uio/uio_hv_generic.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/uio/uio_hv_generic.c b/drivers/uio/uio_hv_generic.c index 4dae2320b103..0330ba99730e 100644 --- a/drivers/uio/uio_hv_generic.c +++ b/drivers/uio/uio_hv_generic.c @@ -247,14 +247,14 @@ hv_uio_probe(struct hv_device *dev, return -ENOTSUPP; } - pdata = kzalloc(sizeof(*pdata), GFP_KERNEL); + pdata = devm_kzalloc(&dev->device, sizeof(*pdata), GFP_KERNEL); if (!pdata) return -ENOMEM; ret = vmbus_alloc_ring(channel, HV_RING_SIZE * PAGE_SIZE, HV_RING_SIZE * PAGE_SIZE); if (ret) - goto fail; + return ret; set_channel_read_mode(channel, HV_CALL_ISR); @@ -347,8 +347,6 @@ hv_uio_probe(struct hv_device *dev, fail_close: hv_uio_cleanup(dev, pdata); -fail: - kfree(pdata); return ret; } @@ -364,10 +362,8 @@ hv_uio_remove(struct hv_device *dev) sysfs_remove_bin_file(&dev->channel->kobj, &ring_buffer_bin_attr); uio_unregister_device(&pdata->info); hv_uio_cleanup(dev, pdata); - hv_set_drvdata(dev, NULL); vmbus_free_ring(dev->channel); - kfree(pdata); return 0; } |