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| author | Alexandre Bounine <alexandre.bounine@idt.com> | 2011-04-14 15:22:14 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-04-14 16:06:56 -0700 |
| commit | 59f9996555542f901f2d01ccab5c0612c8c5c480 (patch) | |
| tree | 2262a4e5620454fd97a82a276a417d1eaed11674 /drivers/rapidio | |
| parent | 13209c2a52afa691ca19e7e6ebd22d4034bdfeed (diff) | |
| download | linux-59f9996555542f901f2d01ccab5c0612c8c5c480.tar.gz linux-59f9996555542f901f2d01ccab5c0612c8c5c480.tar.bz2 linux-59f9996555542f901f2d01ccab5c0612c8c5c480.zip | |
RapidIO/mpc85xx: fix possible mport registration problems
Fix a possible problem with mport registration left non-cleared after
fsl_rio_setup() exits on link error. Abort mport initialization if
registration failed.
This patch is applicable to 2.6.39-rc1 only. The problem does not exist
for earlier versions.
Signed-off-by: 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>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/rapidio')
| -rw-r--r-- | drivers/rapidio/rio.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/rapidio/rio.c b/drivers/rapidio/rio.c index c29719cacbca..86c9a091a2ff 100644 --- a/drivers/rapidio/rio.c +++ b/drivers/rapidio/rio.c @@ -1171,16 +1171,17 @@ static int rio_hdid_setup(char *str) __setup("riohdid=", rio_hdid_setup); -void rio_register_mport(struct rio_mport *port) +int rio_register_mport(struct rio_mport *port) { if (next_portid >= RIO_MAX_MPORTS) { pr_err("RIO: reached specified max number of mports\n"); - return; + return 1; } port->id = next_portid++; port->host_deviceid = rio_get_hdid(port->id); list_add_tail(&port->node, &rio_mports); + return 0; } EXPORT_SYMBOL_GPL(rio_local_get_device_id); |