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| author | Jeremy Linton <lintonrjeremy@gmail.com> | 2015-06-29 18:50:55 -0500 |
|---|---|---|
| committer | Grant Likely <grant.likely@linaro.org> | 2015-06-30 16:55:30 +0100 |
| commit | d23b251669e20b3989643d9c38228039c510478f (patch) | |
| tree | c0561c2213aea378363871d68190fb21d503bcc6 /drivers/of/irq.c | |
| parent | becfc3c86df963491ff1d5ffc6131a06af6bb851 (diff) | |
| download | linux-stable-d23b251669e20b3989643d9c38228039c510478f.tar.gz linux-stable-d23b251669e20b3989643d9c38228039c510478f.tar.bz2 linux-stable-d23b251669e20b3989643d9c38228039c510478f.zip | |
of/irq: Fix pSeries boot failure
of_irq_parse_raw() needs to return the correct interrupt controller
node when an interrupt-map property doesn't exist.
It allows of_irq_parse_raw() to return the node pointer of the interrupt
controller, rather than the parent bus. This allows ics_rtas_host_match()
to detect that the controller is a legacy 8259 and avoid using xics.
This avoids an RTAS assertion/crash during early kernel bootstrapping.
Signed-off-by: Jeremy Linton <lintonrjeremy@gmail.com>
Reviewed-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Diffstat (limited to 'drivers/of/irq.c')
| -rw-r--r-- | drivers/of/irq.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/of/irq.c b/drivers/of/irq.c index 1a7980692f25..cb4b9aeaa10d 100644 --- a/drivers/of/irq.c +++ b/drivers/of/irq.c @@ -252,8 +252,6 @@ int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq) * Successfully parsed an interrrupt-map translation; copy new * interrupt specifier into the out_irq structure */ - out_irq->np = newpar; - match_array = imap - newaddrsize - newintsize; for (i = 0; i < newintsize; i++) out_irq->args[i] = be32_to_cpup(imap - newintsize + i); @@ -262,6 +260,7 @@ int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq) skiplevel: /* Iterate again with new parent */ + out_irq->np = newpar; pr_debug(" -> new parent: %s\n", of_node_full_name(newpar)); of_node_put(ipar); ipar = newpar; |