diff options
| author | Alexey Khoroshilov <khoroshilov@ispras.ru> | 2016-08-12 01:05:08 +0300 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-04-11 10:58:04 +0200 |
| commit | 039057513feae1918ca4c29c596c02c33ee64b90 (patch) | |
| tree | 40f55352cf72e6e0c3126d374b23316c876287db | |
| parent | edd5c139fd4d9c67ed24ad60ad44a2f59d63ddf6 (diff) | |
USB: serial: mos7720: fix non-atomic allocation in write path
commit 5a5a1d614287a647b36dff3f40c2b0ceabbc83ec upstream.
There is an allocation with GFP_KERNEL flag in mos7720_write(),
while it may be called from interrupt context.
Follow-up for commit 191252837626 ("USB: kobil_sct: fix non-atomic
allocation in write path")
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Willy Tarreau <w@1wt.eu>
| -rw-r--r-- | drivers/usb/serial/mos7720.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c index 0f16bf6ea..ddc71d706 100644 --- a/drivers/usb/serial/mos7720.c +++ b/drivers/usb/serial/mos7720.c @@ -1250,7 +1250,7 @@ static int mos7720_write(struct tty_struct *tty, struct usb_serial_port *port, if (urb->transfer_buffer == NULL) { urb->transfer_buffer = kmalloc(URB_TRANSFER_BUFFER_SIZE, - GFP_KERNEL); + GFP_ATOMIC); if (urb->transfer_buffer == NULL) { dev_err_console(port, "%s no more kernel memory...\n", __func__); |