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| author | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2018-03-23 14:30:03 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2018-03-23 14:30:03 +0300 |
| commit | 5c804c6bc55bcfb217c8001b3ca49cca0f9e7047 (patch) | |
| tree | 114eb3f792f7d7e5511d5d9b0490f5fe4cbcf036 | |
| parent | 6062ba61567f8e08f1767ae6d1c3788247da81dc (diff) | |
| download | linux-5c804c6bc55bcfb217c8001b3ca49cca0f9e7047.tar.xz | |
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>
| -rw-r--r-- | drivers/media/platform/vivid/vivid-radio-rx.c | 2 |
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; |