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media: i2c: vs6624: Replace mdelay() with msleep() and usleep_range() in vs6624_probe() 

vs6624_probe() is never called in atomic context.
It calls mdelay() to busily wait, which is not necessary.
mdelay() can be replaced with msleep() and usleep_range().

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>
This commit is contained in:
Jia-Ju Bai 2018-07-26 23:02:40 -04:00 committed by Mauro Carvalho Chehab
parent 2b5c579875
commit a8a4d304b1
1 changed files with 2 additions and 2 deletions
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4
drivers/media/i2c/vs6624.c
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@ -770,7 +770,7 @@ static int vs6624_probe(struct i2c_client *client,
return ret;
}
/* wait 100ms before any further i2c writes are performed */
mdelay(100);
msleep(100);
sensor = devm_kzalloc(&client->dev, sizeof(*sensor), GFP_KERNEL);
if (sensor == NULL)
@ -782,7 +782,7 @@ static int vs6624_probe(struct i2c_client *client,
vs6624_writeregs(sd, vs6624_p1);
vs6624_write(sd, VS6624_MICRO_EN, 0x2);
vs6624_write(sd, VS6624_DIO_EN, 0x1);
mdelay(10);
usleep_range(10000, 11000);
vs6624_writeregs(sd, vs6624_p2);
vs6624_writeregs(sd, vs6624_default);