Evolution-X-Devices/kernel_xiaomi_garnet
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

uio_hv_generic: Fix another memory leak in error handling paths

Browse Source 
commit 0b0226be3a52dadd965644bc52a807961c2c26df upstream.

Memory allocated by 'vmbus_alloc_ring()' at the beginning of the probe
function is never freed in the error handling path.

Add the missing 'vmbus_free_ring()' call.

Note that it is already freed in the .remove function.

Fixes: cdfa835c6e ("uio_hv_generic: defer opening vmbus until first use")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/0d86027b8eeed8e6360bc3d52bcdb328ff9bdca1.1620544055.git.christophe.jaillet@wanadoo.fr
[Shivani: Modified to apply on 5.10.y]
Signed-off-by: Shivani Agarwal <shivani.agarwal@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Christophe JAILLET
2021-05-09 09:13:12 +02:00
committed by Greg Kroah-Hartman
parent a532533f8f
commit 261bbd90cc
1 changed files with 3 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/uio/uio_hv_generic.c
View File

@@ -306,7 +306,7 @@ hv_uio_probe(struct hv_device *dev,
pdata->recv_buf = vzalloc(RECV_BUFFER_SIZE);
if (pdata->recv_buf == NULL) {
ret = -ENOMEM;
goto fail_close;
goto fail_free_ring;
}
ret = vmbus_establish_gpadl(channel, pdata->recv_buf,
@@ -366,6 +366,8 @@ hv_uio_probe(struct hv_device *dev,
fail_close:
hv_uio_cleanup(dev, pdata);
fail_free_ring:
vmbus_free_ring(dev->channel);
return ret;
}