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 18:53:26 +0300 |
| commit | 536d2a6a4fd691701de452b0a39ec3be65bf777a (patch) | |
| tree | 2a009857c5393561b8ddb1441eec147193125c0e /drivers/net/usb | |
| parent | f7eaa228b0fac2ef3a875f6e436fd210a5a831d6 (diff) | |
| download | linux-536d2a6a4fd691701de452b0a39ec3be65bf777a.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>
Diffstat (limited to 'drivers/net/usb')
| -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 af2bbaff2478..a0ea236ac60e 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -2002,7 +2002,7 @@ 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; } @@ -2034,7 +2034,7 @@ 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 { |