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authorMauro Carvalho Chehab <mchehab@s-opensource.com>2018-03-23 07:30:03 -0400
committerMauro Carvalho Chehab <mchehab@s-opensource.com>2018-03-23 07:30:03 -0400
commit5c804c6bc55bcfb217c8001b3ca49cca0f9e7047 (patch)
tree114eb3f792f7d7e5511d5d9b0490f5fe4cbcf036 /drivers/media
parent6062ba61567f8e08f1767ae6d1c3788247da81dc (diff)
media: vivid-radio-rx: add a cast to avoid a warning
The logic at vivid_radio_rx_g_tuner() is producint an overflow warning: drivers/media/platform/vivid/vivid-radio-rx.c:250 vivid_radio_rx_g_tuner() warn: potential negative subtraction from max '65535 - (__builtin_choose_expr( == || == , , __builtin_choose_expr( == || == , , __builtin_choose_expr( == || == , , __builtin_choose_expr( == || == , , __builtin_choose_expr( == || == , , __builtin_choose_expr( == , , (0))))))) * 65535) / delta' Add a cast to prevent that. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/platform/vivid/vivid-radio-rx.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/platform/vivid/vivid-radio-rx.c b/drivers/media/platform/vivid/vivid-radio-rx.c
index acbfea2cce76..1f86d7d4f72f 100644
--- a/drivers/media/platform/vivid/vivid-radio-rx.c
+++ b/drivers/media/platform/vivid/vivid-radio-rx.c
@@ -247,7 +247,7 @@ int vivid_radio_rx_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt)
vt->rangehigh = FM_FREQ_RANGE_HIGH;
sig_qual = dev->radio_rx_sig_qual;
vt->signal = abs(sig_qual) > delta ? 0 :
- 0xffff - (abs(sig_qual) * 0xffff) / delta;
+ 0xffff - ((unsigned)abs(sig_qual) * 0xffff) / delta;
vt->afc = sig_qual > delta ? 0 : sig_qual;
if (abs(sig_qual) > delta)
vt->rxsubchans = 0;