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| author | Hans Verkuil <hverkuil-cisco@xs4all.nl> | 2023-09-23 18:20:48 +0300 |
|---|---|---|
| committer | Hans Verkuil <hverkuil-cisco@xs4all.nl> | 2023-09-27 11:47:22 +0300 |
| commit | 4567ebf8e8f9546b373e78e3b7d584cc30b62028 (patch) | |
| tree | 48694d8084b0403d882cdcabc0bb70518efb1532 | |
| parent | f55254c96a85f43261f9952c74a7461752964dfc (diff) | |
| download | linux-4567ebf8e8f9546b373e78e3b7d584cc30b62028.tar.xz | |
media: vivid: avoid integer overflow
Fixes these compiler warnings:
drivers/media/test-drivers/vivid/vivid-rds-gen.c: In function 'vivid_rds_gen_fill':
drivers/media/test-drivers/vivid/vivid-rds-gen.c:147:56: warning: '.' directive output may be truncated writing 1 byte into a region of size between 0 and 3 [-Wformat-truncation=]
147 | snprintf(rds->psname, sizeof(rds->psname), "%6d.%1d",
| ^
drivers/media/test-drivers/vivid/vivid-rds-gen.c:147:52: note: directive argument in the range [0, 9]
147 | snprintf(rds->psname, sizeof(rds->psname), "%6d.%1d",
| ^~~~~~~~~
drivers/media/test-drivers/vivid/vivid-rds-gen.c:147:9: note: 'snprintf' output between 9 and 12 bytes into a destination of size 9
147 | snprintf(rds->psname, sizeof(rds->psname), "%6d.%1d",
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
148 | freq / 16, ((freq & 0xf) * 10) / 16);
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Acked-by: Arnd Bergmann <arnd@arndb.de>
| -rw-r--r-- | drivers/media/test-drivers/vivid/vivid-rds-gen.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/test-drivers/vivid/vivid-rds-gen.c b/drivers/media/test-drivers/vivid/vivid-rds-gen.c index b5b104ee64c9..c57771119a34 100644 --- a/drivers/media/test-drivers/vivid/vivid-rds-gen.c +++ b/drivers/media/test-drivers/vivid/vivid-rds-gen.c @@ -145,7 +145,7 @@ void vivid_rds_gen_fill(struct vivid_rds_gen *rds, unsigned freq, rds->ta = alt; rds->ms = true; snprintf(rds->psname, sizeof(rds->psname), "%6d.%1d", - freq / 16, ((freq & 0xf) * 10) / 16); + (freq / 16) % 1000000, (((freq & 0xf) * 10) / 16) % 10); if (alt) strscpy(rds->radiotext, " The Radio Data System can switch between different Radio Texts ", |