git: 6b31f08b47ee - stable/13 - sb16_probe: eliminate write only variable r

The branch stable/13 has been updated by imp:

URL: https://cgit.FreeBSD.org/src/commit/?id=6b31f08b47eeed28eeb2af3efe6d21208740901c

commit 6b31f08b47eeed28eeb2af3efe6d21208740901c
Author:     Warner Losh <imp@FreeBSD.org>
AuthorDate: 2022-07-08 17:53:32 +0000
Commit:     Warner Losh <imp@FreeBSD.org>
CommitDate: 2022-10-02 04:25:54 +0000

    sb16_probe: eliminate write only variable r
    
    Sponsored by:           Netflix
    
    (cherry picked from commit 668986eae9b5d7da35a27445c1f306604caa0429)
---
 sys/dev/sound/isa/sb16.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sys/dev/sound/isa/sb16.c b/sys/dev/sound/isa/sb16.c
index 50d7e89650e5..a956b8a6c595 100644
--- a/sys/dev/sound/isa/sb16.c
+++ b/sys/dev/sound/isa/sb16.c
@@ -788,14 +788,14 @@ static int
 sb16_probe(device_t dev)
 {
     	char buf[64];
-	uintptr_t func, ver, r, f;
+	uintptr_t func, ver, f;
 
 	/* The parent device has already been probed. */
-	r = BUS_READ_IVAR(device_get_parent(dev), dev, 0, &func);
+	BUS_READ_IVAR(device_get_parent(dev), dev, 0, &func);
 	if (func != SCF_PCM)
 		return (ENXIO);
 
-	r = BUS_READ_IVAR(device_get_parent(dev), dev, 1, &ver);
+	BUS_READ_IVAR(device_get_parent(dev), dev, 1, &ver);
 	f = (ver & 0xffff0000) >> 16;
 	ver &= 0x0000ffff;
 	if (f & BD_F_SB16) {