diff options
| author | Jia-Ju Bai <baijiaju1990@gmail.com> | 2018-07-27 05:52:49 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2018-08-03 02:10:56 +0300 |
| commit | 730129e9ba4dd668452371eba900e6e46f63b778 (patch) | |
| tree | e7fd80f63ae587086f5110eaaf567c9ad9214453 /drivers/media/dvb-frontends | |
| parent | f46bdacdc06a2256187f98d7d063d1bd5c318b12 (diff) | |
| download | linux-730129e9ba4dd668452371eba900e6e46f63b778.tar.xz | |
media: dvb-frontends: rtl2832_sdr: Replace GFP_ATOMIC with GFP_KERNEL
rtl2832_sdr_submit_urbs(), rtl2832_sdr_alloc_stream_bufs(), and
rtl2832_sdr_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/dvb-frontends')
| -rw-r--r-- | drivers/media/dvb-frontends/rtl2832_sdr.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/media/dvb-frontends/rtl2832_sdr.c b/drivers/media/dvb-frontends/rtl2832_sdr.c index c6e78d870ccd..d448d9d4879c 100644 --- a/drivers/media/dvb-frontends/rtl2832_sdr.c +++ b/drivers/media/dvb-frontends/rtl2832_sdr.c @@ -301,7 +301,7 @@ static int rtl2832_sdr_submit_urbs(struct rtl2832_sdr_dev *dev) for (i = 0; i < dev->urbs_initialized; i++) { dev_dbg(&pdev->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(&pdev->dev, "Could not submit urb no. %d - get them all back\n", @@ -345,7 +345,7 @@ static int rtl2832_sdr_alloc_stream_bufs(struct rtl2832_sdr_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(&pdev->dev, "alloc buf=%d failed\n", @@ -390,7 +390,7 @@ static int rtl2832_sdr_alloc_urbs(struct rtl2832_sdr_dev *dev) /* allocate the URBs */ for (i = 0; i < MAX_BULK_BUFS; i++) { dev_dbg(&pdev->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]); |