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| author | Michal Schmidt <mschmidt@redhat.com> | 2010-05-11 11:44:54 +0200 |
|---|---|---|
| committer | Paul Gortmaker <paul.gortmaker@windriver.com> | 2011-06-26 12:47:15 -0400 |
| commit | 814ce791d089f872b3c57a5b1adf55b12c67fad2 (patch) | |
| tree | 4545aa0199c6646f1873c83b24f1d8e6cd495f9e | |
| parent | f65f5fdea719a4298dcc48852f257a187bfa711c (diff) | |
| download | linux-rt-814ce791d089f872b3c57a5b1adf55b12c67fad2.tar.gz | |
PCI: return correct value when writing to the "reset" attribute
commit 447c5dd7338638f526e9bcf7dcf69b4da5835c7d upstream.
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>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
| -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 e1783bb7284d..4d49aea9e168 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -971,7 +971,12 @@ 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); |