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vfs101: Prevent a division by zero

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Marco Trevisan (Treviño)
2026-07-13 08:13:46 +00:00
committed by Marco Trevisan
parent 62c8554dac
commit ba6f87584a
1 changed files with 3 additions and 0 deletions
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libfprint/drivers/vfs101.c
+3
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@@ -708,6 +708,9 @@ vfs_check_contrast (FpDeviceVfs101 *vdev)
int y; int y;
long int count = 0; long int count = 0;
if (vdev->height <= 0)
return;
/* Check difference from byte 4 to byte 5 for verify contrast of image */ /* Check difference from byte 4 to byte 5 for verify contrast of image */
for (y = 0; y < vdev->height; y++) for (y = 0; y < vdev->height; y++)
count = count + vdev->buffer[offset (5, y)] - vdev->buffer[offset (4, y)]; count = count + vdev->buffer[offset (5, y)] - vdev->buffer[offset (4, y)];