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RapidIO/mpc85xx: fix possible mport registration problems

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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 <[email protected]>
Cc: Kumar Gala <[email protected]>
Cc: Matt Porter <[email protected]>
Cc: Li Yang <[email protected]>
Cc: Thomas Moll <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Alexandre Bounine 2011-04-14 15:22:14 -07:00 • committed by Linus Torvalds
commit 59f9996555
3 changed files with 7 additions and 4 deletions
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5
drivers/rapidio/rio.c
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@ -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);