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PR/52409: Avoid panic at resume. 

XXX: pullup-8
This commit is contained in:
nonaka 2017-07-27 02:11:24 +00:00
parent fab2da9b21
commit 8b6a780bee
1 changed files with 24 additions and 7 deletions
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31
sys/external/bsd/drm2/pci/drm_pci.c vendored
View File

@ -1,4 +1,4 @@
/* $NetBSD: drm_pci.c,v 1.17 2017/06/01 02:45:12 chs Exp $ */
/* $NetBSD: drm_pci.c,v 1.18 2017/07/27 02:11:24 nonaka Exp $ */
/*-
* Copyright (c) 2013 The NetBSD Foundation, Inc.
@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: drm_pci.c,v 1.17 2017/06/01 02:45:12 chs Exp $");
__KERNEL_RCSID(0, "$NetBSD: drm_pci.c,v 1.18 2017/07/27 02:11:24 nonaka Exp $");
#include <sys/types.h>
#include <sys/errno.h>
@ -243,11 +243,23 @@ drm_pci_irq_install(struct drm_device *dev, irqreturn_t (*handler)(void *),
irq_cookie = kmem_alloc(sizeof(*irq_cookie), KM_SLEEP);
if (dev->pdev->msi_enabled) {
irq_cookie->intr_handles = dev->pdev->intr_handles;
dev->pdev->intr_handles = NULL;
if (dev->pdev->intr_handles == NULL) {
if (pci_msi_alloc_exact(pa, &irq_cookie->intr_handles,
1)) {
aprint_error_dev(dev->dev,
"couldn't allocate MSI (%s)\n", name);
goto error;
}
} else {
irq_cookie->intr_handles = dev->pdev->intr_handles;
dev->pdev->intr_handles = NULL;
}
} else {
if (pci_intx_alloc(pa, &irq_cookie->intr_handles))
return -ENOENT;
if (pci_intx_alloc(pa, &irq_cookie->intr_handles)) {
aprint_error_dev(dev->dev,
"couldn't allocate INTx interrupt (%s)\n", name);
goto error;
}
}
intrstr = pci_intr_string(pa->pa_pc, irq_cookie->intr_handles[0],
@ -257,12 +269,17 @@ drm_pci_irq_install(struct drm_device *dev, irqreturn_t (*handler)(void *),
if (irq_cookie->ih_cookie == NULL) {
aprint_error_dev(dev->dev,
"couldn't establish interrupt at %s (%s)\n", intrstr, name);
return -ENOENT;
pci_intr_release(pa->pa_pc, irq_cookie->intr_handles, 1);
goto error;
}
aprint_normal_dev(dev->dev, "interrupting at %s (%s)\n", intrstr, name);
*cookiep = irq_cookie;
return 0;
error:
kmem_free(irq_cookie, sizeof(*irq_cookie));
return -ENOENT;
}
static void