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| author | Michal Schmidt <mschmidt@redhat.com> | 2010-05-11 11:44:54 +0200 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2010-05-11 21:01:11 +0200 |
| commit | 447c5dd7338638f526e9bcf7dcf69b4da5835c7d (patch) | |
| tree | 09385ef825cd7ddb27aff74f5857cbe8ddd903ad /drivers/pci | |
| parent | PCI: change PCI_MSI help text to recommend enabling (diff) | |
| download | linux-447c5dd7338638f526e9bcf7dcf69b4da5835c7d.tar.xz linux-447c5dd7338638f526e9bcf7dcf69b4da5835c7d.zip | |
PCI: return correct value when writing to the "reset" attribute
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>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/pci-sysfs.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index 941e939d1da9..89a08ed39c94 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -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); |