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authorAlexey Khoroshilov <khoroshilov@ispras.ru>2016-08-12 01:05:08 +0300
committerJohan Hovold <johan@kernel.org>2016-08-15 10:37:04 +0200
commit5a5a1d614287a647b36dff3f40c2b0ceabbc83ec (patch)
treec0233bc2c17ac3734bd9b4e752697796af4ad1ec
parent647024a7df36014bbc4479d92d88e6b77c0afcf6 (diff)
USB: serial: mos7720: fix non-atomic allocation in write path
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> Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org>
-rw-r--r--drivers/usb/serial/mos7720.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index 5608af4..de9992b 100644
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -1252,7 +1252,7 @@ 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)
goto exit;
}