Commit ee03c0f2 authored by Jason A. Donenfeld's avatar Jason A. Donenfeld Committed by Takashi Iwai

ALSA: au88x0: use explicitly signed char

With char becoming unsigned by default, and with `char` alone being
ambiguous and based on architecture, signed chars need to be marked
explicitly as such. This fixes warnings like:

sound/pci/au88x0/au88x0_core.c:2029 vortex_adb_checkinout() warn: signedness bug returning '(-22)'
sound/pci/au88x0/au88x0_core.c:2046 vortex_adb_checkinout() warn: signedness bug returning '(-12)'
sound/pci/au88x0/au88x0_core.c:2125 vortex_adb_allocroute() warn: 'vortex_adb_checkinout(vortex, (0), en, 0)' is unsigned
sound/pci/au88x0/au88x0_core.c:2170 vortex_adb_allocroute() warn: 'vortex_adb_checkinout(vortex, stream->resources, en, 4)' is unsigned

As well, since one function returns errnos, return an `int` rather than
a `signed char`.
Signed-off-by: default avatarJason A. Donenfeld <Jason@zx2c4.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20221024162929.536004-1-Jason@zx2c4.comSigned-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent f86bfeb6
......@@ -141,7 +141,7 @@ struct snd_vortex {
#ifndef CHIP_AU8810
stream_t dma_wt[NR_WT];
wt_voice_t wt_voice[NR_WT]; /* WT register cache. */
char mixwt[(NR_WT / NR_WTPB) * 6]; /* WT mixin objects */
s8 mixwt[(NR_WT / NR_WTPB) * 6]; /* WT mixin objects */
#endif
/* Global resources */
......@@ -235,8 +235,8 @@ static int vortex_alsafmt_aspfmt(snd_pcm_format_t alsafmt, vortex_t *v);
static void vortex_connect_default(vortex_t * vortex, int en);
static int vortex_adb_allocroute(vortex_t * vortex, int dma, int nr_ch,
int dir, int type, int subdev);
static char vortex_adb_checkinout(vortex_t * vortex, int resmap[], int out,
int restype);
static int vortex_adb_checkinout(vortex_t * vortex, int resmap[], int out,
int restype);
#ifndef CHIP_AU8810
static int vortex_wt_allocroute(vortex_t * vortex, int dma, int nr_ch);
static void vortex_wt_connect(vortex_t * vortex, int en);
......
......@@ -1998,7 +1998,7 @@ static const int resnum[VORTEX_RESOURCE_LAST] =
out: Mean checkout if != 0. Else mean Checkin resource.
restype: Indicates type of resource to be checked in or out.
*/
static char
static int
vortex_adb_checkinout(vortex_t * vortex, int resmap[], int out, int restype)
{
int i, qty = resnum[restype], resinuse = 0;
......
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