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authorAlexandre Bounine <alexandre.bounine@idt.com>2011-04-14 15:22:14 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-04-14 16:06:56 -0700
commit59f9996555542f901f2d01ccab5c0612c8c5c480 (patch)
tree2262a4e5620454fd97a82a276a417d1eaed11674 /arch/powerpc/sysdev/fsl_rio.c
parent13209c2a52afa691ca19e7e6ebd22d4034bdfeed (diff)
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 'arch/powerpc/sysdev/fsl_rio.c')
-rw-r--r--arch/powerpc/sysdev/fsl_rio.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/powerpc/sysdev/fsl_rio.c b/arch/powerpc/sysdev/fsl_rio.c
index 14232d57369..49798532b47 100644
--- a/arch/powerpc/sysdev/fsl_rio.c
+++ b/arch/powerpc/sysdev/fsl_rio.c
@@ -1457,7 +1457,6 @@ int fsl_rio_setup(struct platform_device *dev)
port->ops = ops;
port->priv = priv;
port->phys_efptr = 0x100;
- rio_register_mport(port);
priv->regs_win = ioremap(regs.start, regs.end - regs.start + 1);
rio_regs_win = priv->regs_win;
@@ -1504,6 +1503,9 @@ int fsl_rio_setup(struct platform_device *dev)
dev_info(&dev->dev, "RapidIO Common Transport System size: %d\n",
port->sys_size ? 65536 : 256);
+ if (rio_register_mport(port))
+ goto err;
+
if (port->host_deviceid >= 0)
out_be32(priv->regs_win + RIO_GCCSR, RIO_PORT_GEN_HOST |
RIO_PORT_GEN_MASTER | RIO_PORT_GEN_DISCOVERED);