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kfifo: fix warn_unused_result

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Fix the "ignoring return value of '...', declared with attribute
warn_unused_result" compiler warning in several users of the new kfifo
API.

It removes the __must_check attribute from kfifo_in() and
kfifo_in_locked() which must not necessary performed.

Fix the allocation bug in the nozomi driver file, by moving out the
kfifo_alloc from the interrupt handler into the probe function.

Fix the kfifo_out() and kfifo_out_locked() users to handle a unexpected
end of fifo.

Signed-off-by: Stefani Seibold <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Stefani Seibold 2009-12-21 14:37:29 -08:00 • committed by Linus Torvalds
commit 9842c38e91
7 changed files with 51 additions and 16 deletions
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5
drivers/infiniband/hw/cxgb3/cxio_resource.c
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@ -86,8 +86,9 @@ static int __cxio_init_resource_fifo(struct kfifo *fifo,
kfifo_in(fifo, (unsigned char *) &i, sizeof(u32));
for (i = 0; i < skip_low + skip_high; i++)
kfifo_out_locked(fifo, (unsigned char *) &entry,
sizeof(u32), fifo_lock);
if (kfifo_out_locked(fifo, (unsigned char *) &entry,
sizeof(u32), fifo_lock) != sizeof(u32))
break;
return 0;
}