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authorAlexey Khoroshilov <khoroshilov@ispras.ru>2016-08-12 01:05:09 +0300
committerJohan Hovold <johan@kernel.org>2016-08-15 10:43:57 +0200
commit3b7c7e52efda0d4640060de747768360ba70a7c0 (patch)
tree7805b01626db56539e3fc382bb93a35a52e84b47
parent5a5a1d614287a647b36dff3f40c2b0ceabbc83ec (diff)
USB: serial: mos7840: fix non-atomic allocation in write path
There is an allocation with GFP_KERNEL flag in mos7840_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> Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org>
-rw-r--r--drivers/usb/serial/mos7840.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index ed378fb..57426d7 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -1340,8 +1340,8 @@ static int mos7840_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);
+ urb->transfer_buffer = kmalloc(URB_TRANSFER_BUFFER_SIZE,
+ GFP_ATOMIC);
if (!urb->transfer_buffer)
goto exit;
}