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Subject[PATCH] cxgb3: Fix __must_check warning from call to sysfs_create_group.
Date
Fix the warning:
drivers/net/cxgb3/cxgb3_main.c: In function ‘offload_open’:
drivers/net/cxgb3/cxgb3_main.c:936: warning: ignoring return value of
‘sysfs_create_group’, declared with attribute warn_unused_result

Now the return value is checked; if sysfs_create_group() returns failure,
a warning is printed using dev_dbg, and the code continues as before. Use
of dev_dbg ensures printk is not needlessly included unless desired for
debugging. The original driver code chose to ignore failure of
sysfs_create_group, and this has not been changed beyond a warning when
DEBUG is enabled.

Signed-off-by: Dan Noe <dpn@isomerica.net>
---
drivers/net/cxgb3/cxgb3_main.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)

Applies against linux-2.6.git.

diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index fd2e05b..05e5f59 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -1014,8 +1014,8 @@ static int offload_open(struct net_device *dev)
adapter->port[0]->mtu : 0xffff);
init_smt(adapter);

- /* Never mind if the next step fails */
- sysfs_create_group(&tdev->lldev->dev.kobj, &offload_attr_group);
+ if (sysfs_create_group(&tdev->lldev->dev.kobj, &offload_attr_group))
+ dev_dbg(&dev->dev, "cannot create sysfs group\n");

/* Call back all registered clients */
cxgb3_add_clients(tdev);
--
1.5.2.5
--
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