[1/2] USB: mos7720: fix non-atomic allocation in write path
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Message ID 1470953109-4280-1-git-send-email-khoroshilov@ispras.ru
State New, archived
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  • [1/2] USB: mos7720: fix non-atomic allocation in write path
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Commit Message

Alexey Khoroshilov Aug. 11, 2016, 10:05 p.m. UTC
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>
---
 drivers/usb/serial/mos7720.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch
diff mbox series

diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index 5608af4a369d..de9992b492b0 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;
 	}