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PCI: return correct value when writing to the "reset" attribute

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A successful write() to the "reset" sysfs attribute should return the
number of bytes written, not 0. Otherwise userspace (bash) retries the
write over and over again.

Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Michal Schmidt 2010-05-11 11:44:54 +02:00 committed by Jesse Barnes
parent 3196180a54
commit 447c5dd733
1 changed files with 6 additions and 1 deletions
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7
drivers/pci/pci-sysfs.c
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@ -960,7 +960,12 @@ static ssize_t reset_store(struct device *dev,
if (val != 1)
return -EINVAL;
return pci_reset_function(pdev);
result = pci_reset_function(pdev);
if (result < 0)
return result;
return count;
}
static struct device_attribute reset_attr = __ATTR(reset, 0200, NULL, reset_store);