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| author | Alexey Khoroshilov <khoroshilov@ispras.ru> | 2016-08-12 01:05:08 +0300 |
|---|---|---|
| committer | Sasha Levin <alexander.levin@verizon.com> | 2016-09-12 14:53:12 -0400 |
| commit | a1147c771a69625aaea70924cd7128ba35a2a74c (patch) | |
| tree | 6bc5e84d55c1f8b979b13dd62005799d05ee0633 /drivers | |
| parent | 87fe0cd807d1974f852be46f19771813bc355991 (diff) | |
| download | lwn-a1147c771a69625aaea70924cd7128ba35a2a74c.tar.gz lwn-a1147c771a69625aaea70924cd7128ba35a2a74c.zip | |
USB: serial: mos7720: fix non-atomic allocation in write path
[ Upstream commit 5a5a1d614287a647b36dff3f40c2b0ceabbc83ec ]
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>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Diffstat (limited to 'drivers')
| -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 dfd728a263d2..c3b8ae360424 100644 --- a/drivers/usb/serial/mos7720.c +++ b/drivers/usb/serial/mos7720.c @@ -1239,7 +1239,7 @@ 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; } |