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Subject: media: ccs: Add a sanity check for external clock frequency Author: Sakari Ailus <[email protected]> Date: Thu Oct 8 18:43:56 2020 +0200 The driver depends on the external clock frequency. Add a sanity check for the frequency, by returning an error from probe if it's zero. Signed-off-by: Sakari Ailus <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]> drivers/media/i2c/ccs/ccs-core.c | 5 +++++ 1 file changed, 5 insertions(+) --- diff --git a/drivers/media/i2c/ccs/ccs-core.c b/drivers/media/i2c/ccs/ccs-core.c index fae8ceded861..08fce285f73a 100644 --- a/drivers/media/i2c/ccs/ccs-core.c +++ b/drivers/media/i2c/ccs/ccs-core.c @@ -3275,6 +3275,11 @@ static int ccs_probe(struct i2c_client *client) return -EINVAL; } + if (!sensor->hwcfg.ext_clk) { + dev_err(&client->dev, "cannot work with xclk frequency 0\n"); + return -EINVAL; + } + sensor->reset = devm_gpiod_get_optional(&client->dev, "reset", GPIOD_OUT_HIGH); if (IS_ERR(sensor->reset)) _______________________________________________ linuxtv-commits mailing list [email protected] https://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
