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ALSA: au88x0: fix incorrect left shift

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vortex_wt_setdsout performs bit-negation on the bit position (wt&0x1f)
rather than on the resulting bitmask.  This code is never actually
invoked (vortex_wt_setdsout is always called with en=1), so this does
not currently cause any problem, and this patch is simply cleanup.

Signed-off-by: Nickolai Zeldovich <nickolai@csail.mit.edu>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Nickolai Zeldovich 2013-01-05 14:14:08 -05:00 committed by Takashi Iwai
parent dc30a43690
commit 61ed1dca16
1 changed files with 1 additions and 1 deletions
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2
sound/pci/au88x0/au88x0_synth.c
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@ -58,7 +58,7 @@ static void vortex_wt_setdsout(vortex_t * vortex, u32 wt, int en)
if (en)
temp |= (1 << (wt & 0x1f));
else
temp &= (1 << ~(wt & 0x1f));
temp &= ~(1 << (wt & 0x1f));
hwwrite(vortex->mmio, WT_DSREG((wt >= 0x20) ? 1 : 0), temp);
}