[src/thorpej-i2c-spi-conf]: src/sys/dev/i2c Check for errors from iic_acquire...

[thorpej <thorpej%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/6c5a2a823281
branches:  thorpej-i2c-spi-conf
changeset: 1020818:6c5a2a823281
user:      thorpej <thorpej%NetBSD.org@localhost>
date:      Sun May 16 21:04:59 2021 +0000

description:
Check for errors from iic_acquire_bus() in iic_ioctl_exec().

diffstat:

 sys/dev/i2c/i2c.c |  8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)

diffs (29 lines):

diff -r a9c0310c53ef -r 6c5a2a823281 sys/dev/i2c/i2c.c
--- a/sys/dev/i2c/i2c.c Sun May 16 21:03:38 2021 +0000
+++ b/sys/dev/i2c/i2c.c Sun May 16 21:04:59 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: i2c.c,v 1.78.2.4 2021/05/16 21:03:38 thorpej Exp $     */
+/*     $NetBSD: i2c.c,v 1.78.2.5 2021/05/16 21:04:59 thorpej Exp $     */
 
 /*-
  * Copyright (c) 2021 The NetBSD Foundation, Inc.
@@ -69,7 +69,7 @@
 #endif
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: i2c.c,v 1.78.2.4 2021/05/16 21:03:38 thorpej Exp $");
+__KERNEL_RCSID(0, "$NetBSD: i2c.c,v 1.78.2.5 2021/05/16 21:04:59 thorpej Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -1005,7 +1005,9 @@
                        goto out;
        }
 
-       iic_acquire_bus(ic, 0);
+       if ((error = iic_acquire_bus(ic, 0)) != 0) {
+               goto out;
+       }
        error = iic_exec(ic, iie->iie_op, iie->iie_addr, cmd, iie->iie_cmdlen,
            buf, iie->iie_buflen, 0);
        iic_release_bus(ic, 0);