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| author | Takashi Iwai <tiwai@suse.de> | 2016-03-08 09:49:43 (GMT) |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2016-03-08 09:49:43 (GMT) |
| commit | 56d94d70398f0fbb1863a03a145db1a86f009a71 (patch) | |
| tree | 9e52dc537f8f8359c70b66f5000192bb280b41b9 /drivers/of/irq.c | |
| parent | bb63f726f98bec032c7322a9c36eb4167307d856 (diff) | |
| parent | fc4f000bf8c0cbf38f44de6bd5e225574e572ed4 (diff) | |
| download | linux-56d94d70398f0fbb1863a03a145db1a86f009a71.tar.xz | |
Merge branch 'topic/hda' into for-next
Diffstat (limited to 'drivers/of/irq.c')
| -rw-r--r-- | drivers/of/irq.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/of/irq.c b/drivers/of/irq.c index 7ee21ae..e7bfc17 100644 --- a/drivers/of/irq.c +++ b/drivers/of/irq.c @@ -635,6 +635,13 @@ static u32 __of_msi_map_rid(struct device *dev, struct device_node **np, msi_base = be32_to_cpup(msi_map + 2); rid_len = be32_to_cpup(msi_map + 3); + if (rid_base & ~map_mask) { + dev_err(parent_dev, + "Invalid msi-map translation - msi-map-mask (0x%x) ignores rid-base (0x%x)\n", + map_mask, rid_base); + return rid_out; + } + msi_controller_node = of_find_node_by_phandle(phandle); matched = (masked_rid >= rid_base && @@ -654,7 +661,7 @@ static u32 __of_msi_map_rid(struct device *dev, struct device_node **np, if (!matched) return rid_out; - rid_out = masked_rid + msi_base; + rid_out = masked_rid - rid_base + msi_base; dev_dbg(dev, "msi-map at: %s, using mask %08x, rid-base: %08x, msi-base: %08x, length: %08x, rid: %08x -> %08x\n", dev_name(parent_dev), map_mask, rid_base, msi_base, |