diff options
| author | Oliver Neukum <oneukum@suse.com> | 2022-06-28 12:35:17 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-07-07 18:54:50 +0300 |
| commit | 295f624f8c70b442404efe3b0b152c0ce8b0b364 (patch) | |
| tree | 08d3dcedfa5d6319207b8d0090c7c90d043c73b7 | |
| parent | 6456192585ecca6d874c8401cceb4e29c590f2ec (diff) | |
| download | linux-295f624f8c70b442404efe3b0b152c0ce8b0b364.tar.xz | |
usbnet: fix memory allocation in helpers
commit e65af5403e462ccd7dff6a045a886c64da598c2e upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/net/usb/usbnet.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index 36b24ec11650..2ea81931543c 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 { |