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iic_ioctl_exec: if the i2c controller's "exec" function uses -1 instead of 

an error code to report failure, convert it to EIO.
This commit is contained in:
jmcneill 2011-10-03 23:53:04 +00:00
parent c1a45d4469
commit b64e359841
1 changed files with 8 additions and 2 deletions
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10
sys/dev/i2c/i2c.c
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@ -1,4 +1,4 @@
/* $NetBSD: i2c.c,v 1.35 2011/10/03 22:27:23 jmcneill Exp $ */
/* $NetBSD: i2c.c,v 1.36 2011/10/03 23:53:04 jmcneill Exp $ */
/*
* Copyright (c) 2003 Wasabi Systems, Inc.
@ -36,7 +36,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: i2c.c,v 1.35 2011/10/03 22:27:23 jmcneill Exp $");
__KERNEL_RCSID(0, "$NetBSD: i2c.c,v 1.36 2011/10/03 23:53:04 jmcneill Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -508,6 +508,12 @@ iic_ioctl_exec(struct iic_softc *sc, i2c_ioctl_exec_t *iie, int flag)
buf, iie->iie_buflen, 0);
iic_release_bus(ic, 0);
/*
* Some drivers return error codes on failure, and others return -1.
*/
if (error < 0)
error = EIO;
if (cmd)
kmem_free(cmd, iie->iie_cmdlen);