diff options
| author | Jia-Ju Bai <baijiaju1990@gmail.com> | 2018-07-30 12:33:20 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2018-08-03 02:16:17 +0300 |
| commit | 2c3449fb95c318920ca8dc645d918d408db219ac (patch) | |
| tree | 50c6ab7f8534f3e1eaaf1370415b35c089522caa /drivers/media/usb | |
| parent | 7a3369e8a78538e813e96294b8c7fce9feb76e0f (diff) | |
| download | linux-2c3449fb95c318920ca8dc645d918d408db219ac.tar.xz | |
media: usb: hackrf: Replace GFP_ATOMIC with GFP_KERNEL
hackrf_submit_urbs(), hackrf_alloc_stream_bufs() and hackrf_alloc_urbs()
are never called in atomic context.
They call usb_submit_urb(), usb_alloc_coherent() and usb_alloc_urb()
with GFP_ATOMIC, which is not necessary.
GFP_ATOMIC can be replaced with GFP_KERNEL.
This is found by a static analysis tool named DCNS written by myself.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers/media/usb')
| -rw-r--r-- | drivers/media/usb/hackrf/hackrf.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/media/usb/hackrf/hackrf.c b/drivers/media/usb/hackrf/hackrf.c index 6d692fb3e8dd..34085a0b15a1 100644 --- a/drivers/media/usb/hackrf/hackrf.c +++ b/drivers/media/usb/hackrf/hackrf.c @@ -597,7 +597,7 @@ static int hackrf_submit_urbs(struct hackrf_dev *dev) for (i = 0; i < dev->urbs_initialized; i++) { dev_dbg(dev->dev, "submit urb=%d\n", i); - ret = usb_submit_urb(dev->urb_list[i], GFP_ATOMIC); + ret = usb_submit_urb(dev->urb_list[i], GFP_KERNEL); if (ret) { dev_err(dev->dev, "Could not submit URB no. %d - get them all back\n", i); @@ -636,7 +636,7 @@ static int hackrf_alloc_stream_bufs(struct hackrf_dev *dev) for (dev->buf_num = 0; dev->buf_num < MAX_BULK_BUFS; dev->buf_num++) { dev->buf_list[dev->buf_num] = usb_alloc_coherent(dev->udev, - BULK_BUFFER_SIZE, GFP_ATOMIC, + BULK_BUFFER_SIZE, GFP_KERNEL, &dev->dma_addr[dev->buf_num]); if (!dev->buf_list[dev->buf_num]) { dev_dbg(dev->dev, "alloc buf=%d failed\n", @@ -689,7 +689,7 @@ static int hackrf_alloc_urbs(struct hackrf_dev *dev, bool rcv) /* allocate the URBs */ for (i = 0; i < MAX_BULK_BUFS; i++) { dev_dbg(dev->dev, "alloc urb=%d\n", i); - dev->urb_list[i] = usb_alloc_urb(0, GFP_ATOMIC); + dev->urb_list[i] = usb_alloc_urb(0, GFP_KERNEL); if (!dev->urb_list[i]) { for (j = 0; j < i; j++) usb_free_urb(dev->urb_list[j]); |