From: Daniel Scheller <d.scheller@xxxxxxx> Smatch and gcc complained: drivers/media/pci/ddbridge/ddbridge-core.c:3491 bpsnr_show() warn: impossible condition '(snr[0] == 255) => ((-128)-127 == 255)' drivers/media/pci/ddbridge/ddbridge-core.c: In function ‘bpsnr_show’: drivers/media/pci/ddbridge/ddbridge-core.c:3491:13: warning: comparison is always false due to limited range of data type [-Wtype-limits] Fix this by changing the type of snr to unsigned char. Cc: Ralph Metzler <rjkm@xxxxxxxxxxxxxx> Signed-off-by: Daniel Scheller <d.scheller@xxxxxxx> Tested-by: Richard Scobie <r.scobie@xxxxxxxxxxxx> Tested-by: Jasmin Jessich <jasmin@xxxxxx> Tested-by: Dietmar Spingler <d_spingler@xxxxxxxxxx> Tested-by: Manfred Knick <Manfred.Knick@xxxxxxxxxxx> --- drivers/media/pci/ddbridge/ddbridge-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/pci/ddbridge/ddbridge-core.c b/drivers/media/pci/ddbridge/ddbridge-core.c index 1ffcf23c63ed..ace06fcdd0cf 100644 --- a/drivers/media/pci/ddbridge/ddbridge-core.c +++ b/drivers/media/pci/ddbridge/ddbridge-core.c @@ -3251,7 +3251,7 @@ static ssize_t bpsnr_show(struct device *device, struct device_attribute *attr, char *buf) { struct ddb *dev = dev_get_drvdata(device); - char snr[32]; + unsigned char snr[32]; if (!dev->i2c_num) return 0; -- 2.13.0