The function has an unsigned return type, but returns a negative constant to indicate an error condition. The result of calling the function is only tested by comparison to 0, and thus unsigned is not needed and can be dropped from the return type. A sematic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @exists@ identifier f; constant C; @@ unsigned f(...) { <+... * return -C; ...+> } // </smpl> Signed-off-by: Julia Lawall <julia@xxxxxxx> --- drivers/video/matrox/matroxfb_maven.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/video/matrox/matroxfb_maven.c b/drivers/video/matrox/matroxfb_maven.c index 1e3e8f1..a78611a 100644 --- a/drivers/video/matrox/matroxfb_maven.c +++ b/drivers/video/matrox/matroxfb_maven.c @@ -280,7 +280,7 @@ static int matroxfb_PLL_mavenclock(const struct matrox_pll_features2* pll, return fxtal * (*feed) / (*in) * ctl->den; } -static unsigned int matroxfb_mavenclock(const struct matrox_pll_ctl* ctl, +static int matroxfb_mavenclock(const struct matrox_pll_ctl *ctl, unsigned int htotal, unsigned int vtotal, unsigned int* in, unsigned int* feed, unsigned int* post, unsigned int* htotal2) { -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
