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drm/radeon/kms: Don't try to enable IRQ if we have no handler installed

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If for any reason we haven't installed handler we shouldn't try to
enable IRQ/MSI on the hw so we don't get unhandled IRQ/MSI which
makes the kernel sad.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Jerome Glisse
2010-01-07 15:39:14 +01:00
committed by Dave Airlie
parent e77cef9c2d
commit 003e69f986
4 changed files with 28 additions and 5 deletions
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7
drivers/gpu/drm/radeon/r600.c
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@@ -285,7 +285,8 @@ void r600_hpd_init(struct radeon_device *rdev)
}
}
}
r600_irq_set(rdev);
if (rdev->irq.installed)
r600_irq_set(rdev);
}
void r600_hpd_fini(struct radeon_device *rdev)
@@ -2461,6 +2462,10 @@ int r600_irq_set(struct radeon_device *rdev)
u32 mode_int = 0;
u32 hpd1, hpd2, hpd3, hpd4 = 0, hpd5 = 0, hpd6 = 0;
if (!rdev->irq.installed) {
WARN(1, "Can't enable IRQ/MSI because no handler is installed.\n");
return -EINVAL;
}
/* don't enable anything if the ih is disabled */
if (!rdev->ih.enabled)
return 0;