diff options
| author | Thomas Taranowski <tom@baringforge.com> | 2011-01-12 17:00:44 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-02-17 15:14:22 -0800 |
| commit | 69def87c5cc3866a25a35dc59f70008ee54af38a (patch) | |
| tree | d0de23b181c5bf84f0d1e4c0f5e792ba1dad77f5 /net/unix/af_unix.c | |
| parent | 2be2f98b96e349873e45705b52a967149acd90b7 (diff) | |
rapidio: fix hang on RapidIO doorbell queue full condition
commit 12a4dc43911785f51a596f771ae0701b18d436f1 upstream.
In fsl_rio_dbell_handler() the code currently simply acknowledges the QFI
queue full interrupt, but does nothing to resolve the queue full
condition. Instead, it jumps to the end of the isr. When a queue full
condition occurs, the isr is then re-entered immediately and continually,
forever.
The fix is to just fall through and read out current doorbell entries.
Signed-off-by: Thomas Taranowski <tom@baringforge.com>
Cc: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Li Yang <leoli@freescale.com>
Cc: Thomas Moll <thomas.moll@sysgo.com>
Cc: Micha Nelissen <micha@neli.hopto.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions