From ccb2ca78a7278ec0024f281fdc2155b32f995cef Mon Sep 17 00:00:00 2001
From: Jia-Ju Bai <baijiaju1990@gmail.com>
Date: Thu, 26 Jul 2018 23:09:46 -0400
Subject: [PATCH] media: pci: cx23885: Replace mdelay() with msleep() and
usleep_range() in altera_ci_slot_reset()
altera_ci_slot_reset() is never called in atomic context.
It calls mdelay() to busily wait, which is not necessary.
mdelay() can be replaced with msleep().
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: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
---
drivers/media/pci/cx23885/altera-ci.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/pci/cx23885/altera-ci.c b/drivers/media/pci/cx23885/altera-ci.c
index 70aec9bb7e959..62bc8049b3201 100644
--- a/drivers/media/pci/cx23885/altera-ci.c
+++ b/drivers/media/pci/cx23885/altera-ci.c
@@ -346,7 +346,7 @@ static int altera_ci_slot_reset(struct dvb_ca_en50221 *en50221, int slot)
mutex_unlock(&inter->fpga_mutex);
for (;;) {
- mdelay(50);
+ msleep(50);
mutex_lock(&inter->fpga_mutex);
--
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