From eb7ebfa3c1989aa8e59d5e68ab3cddd7df1bfb27 Mon Sep 17 00:00:00 2001 From: Philipp Klocke Date: Thu, 18 Oct 2018 12:33:02 +0200 Subject: ALSA: i2c/cs8427: Fix int to char conversion Compiling with clang yields the following warning: sound/i2c/cs8427.c:140:31: warning: implicit conversion from 'int' to 'char' changes value from 160 to -96 [-Wconstant-conversion] data[0] = CS8427_REG_AUTOINC | CS8427_REG_CORU_DATABUF; ~ ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~ Because CS8427_REG_AUTOINC is defined as 128, it is too big for a char field. So change data from char to unsigned char, that it can hold the value. This patch does not change the generated code. Signed-off-by: Philipp Klocke Signed-off-by: Takashi Iwai --- sound/i2c/cs8427.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'sound/i2c') diff --git a/sound/i2c/cs8427.c b/sound/i2c/cs8427.c index 2647309bc675..8afa2f888466 100644 --- a/sound/i2c/cs8427.c +++ b/sound/i2c/cs8427.c @@ -118,7 +118,7 @@ static int snd_cs8427_send_corudata(struct snd_i2c_device *device, struct cs8427 *chip = device->private_data; char *hw_data = udata ? chip->playback.hw_udata : chip->playback.hw_status; - char data[32]; + unsigned char data[32]; int err, idx; if (!memcmp(hw_data, ndata, count)) -- cgit v1.2.3