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authorAlexandru Ardelean <alexandru.ardelean@analog.com>2020-11-19 18:49:03 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-12-09 21:59:00 +0300
commit74e71964b1a9ffd34fa4b6ec8f2fa13e7cf0ac7a (patch)
tree3c00d8b154ce46700c3ba3008b38377021ed70d1 /drivers/uio
parentd57801c45f53e3da999e2a0beb932717fe335c41 (diff)
downloadlinux-74e71964b1a9ffd34fa4b6ec8f2fa13e7cf0ac7a.tar.xz
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.c8
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;
}