Use DIV_ROUND_CLOSEST() instead of open-coding it. This documents intent and makes it more clear what is going on for the casual reviewer. Generated using the following the Coccinelle semantic patch. // <smpl> @@ expression x, y; @@ -((x) + ((y) / 2)) / (y) +DIV_ROUND_CLOSEST(x, y) @r1@ expression x; constant C1; constant C2; @@ ((x) + C1) / C2 @script:python@ C1 << r1.C1; C2 << r1.C2; @@ try: if int(C1) * 2 != int(C2): cocci.include_match(False) except: cocci.include_match(False) @@ expression r1.x; constant r1.C1; constant r1.C2; @@ -(((x) + C1) / C2) +DIV_ROUND_CLOSEST(x, C2) // </smpl> Signed-off-by: Lars-Peter Clausen <lars@xxxxxxxxxx> --- sound/pci/trident/trident_main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/pci/trident/trident_main.c b/sound/pci/trident/trident_main.c index 6e50376163a2..8d0d0d8335ec 100644 --- a/sound/pci/trident/trident_main.c +++ b/sound/pci/trident/trident_main.c @@ -678,7 +678,7 @@ static unsigned int snd_trident_convert_rate(unsigned int rate) else if (rate == 48000) delta = 0x1000; else - delta = (((rate << 12) + 24000) / 48000) & 0x0000ffff; + delta = DIV_ROUND_CLOSEST(rate << 12, 48000) & 0x0000ffff; return delta; } @@ -1034,7 +1034,7 @@ static int snd_trident_capture_prepare(struct snd_pcm_substream *substream) ESO_bytes++; // Set channel sample rate, 4.12 format - val = (((unsigned int) 48000L << 12) + (runtime->rate/2)) / runtime->rate; + val = DIV_ROUND_CLOSEST(48000U << 12, runtime->rate); outw(val, TRID_REG(trident, T4D_SBDELTA_DELTA_R)); // Set channel interrupt blk length -- 2.20.1
