em28xx_init_usb_xfer() is never called in atomic context.
It calls usb_submit_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@xxxxxxxxx>
---
drivers/media/usb/em28xx/em28xx-core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/usb/em28xx/em28xx-core.c b/drivers/media/usb/em28xx/em28xx-core.c
index 36d341fb65dd..4a2ba6132a90 100644
--- a/drivers/media/usb/em28xx/em28xx-core.c
+++ b/drivers/media/usb/em28xx/em28xx-core.c
@@ -1053,7 +1053,7 @@ int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode,
/* submit urbs and enables IRQ */
for (i = 0; i < usb_bufs->num_bufs; i++) {
- rc = usb_submit_urb(usb_bufs->urb[i], GFP_ATOMIC);
+ rc = usb_submit_urb(usb_bufs->urb[i], GFP_KERNEL);
if (rc) {
dev_err(&dev->intf->dev,
"submit of urb %i failed (error=%i)\n", i, rc);
--
2.17.0
