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authorOliver Neukum <oneukum@suse.com>2022-06-28 11:35:17 +0200
committerJakub Kicinski <kuba@kernel.org>2022-06-29 20:36:45 -0700
commite65af5403e462ccd7dff6a045a886c64da598c2e (patch)
treee52751e274400cfcf79a1fd94ffea7be23e80c6e /drivers/net/usb/usbnet.c
parent7b92aa9e613508cbaa29dd35bf27db4c35628b10 (diff)
usbnet: fix memory allocation in helpers
usbnet provides some helper functions that are also used in the context of reset() operations. During a reset the other drivers on a device are unable to operate. As that can be block drivers, a driver for another interface cannot use paging in its memory allocations without risking a deadlock. Use GFP_NOIO in the helpers. Fixes: 877bd862f32b8 ("usbnet: introduce usbnet 3 command helpers") Signed-off-by: Oliver Neukum <oneukum@suse.com> Link: https://lore.kernel.org/r/20220628093517.7469-1-oneukum@suse.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/usb/usbnet.c')
-rw-r--r--drivers/net/usb/usbnet.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 1cb6dab3e2d0..e2135ab87a6e 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -2004,7 +2004,7 @@ static int __usbnet_read_cmd(struct usbnet *dev, u8 cmd, u8 reqtype,
cmd, reqtype, value, index, size);
if (size) {
- buf = kmalloc(size, GFP_KERNEL);
+ buf = kmalloc(size, GFP_NOIO);
if (!buf)
goto out;
}
@@ -2036,7 +2036,7 @@ static int __usbnet_write_cmd(struct usbnet *dev, u8 cmd, u8 reqtype,
cmd, reqtype, value, index, size);
if (data) {
- buf = kmemdup(data, size, GFP_KERNEL);
+ buf = kmemdup(data, size, GFP_NOIO);
if (!buf)
goto out;
} else {