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| author | Dominik Brodowski <linux@dominikbrodowski.net> | 2010-09-18 10:19:13 +0200 |
|---|---|---|
| committer | Dominik Brodowski <linux@dominikbrodowski.net> | 2010-09-18 16:30:18 +0200 |
| commit | 7cdffc86528ec9c55c83c649b6d64cadeb558136 (patch) | |
| tree | 7c802dba05b0c2c9f784452ff73d816469413c8c /drivers/pcmcia | |
| parent | 151b6a5f1d4c547c92ec67a5a6fedc16f435956e (diff) | |
| download | lwn-7cdffc86528ec9c55c83c649b6d64cadeb558136.tar.gz lwn-7cdffc86528ec9c55c83c649b6d64cadeb558136.zip | |
pcmcia: preserve configuration information if request_io fails partly
If pcmcia_request_io() only fails partly -- for the second of two
requested resources -- preserve the configuration settings for the
first one.
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'drivers/pcmcia')
| -rw-r--r-- | drivers/pcmcia/pcmcia_resource.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/pcmcia/pcmcia_resource.c b/drivers/pcmcia/pcmcia_resource.c index a5c176598d95..9ba4dade69a4 100644 --- a/drivers/pcmcia/pcmcia_resource.c +++ b/drivers/pcmcia/pcmcia_resource.c @@ -595,7 +595,13 @@ int pcmcia_request_io(struct pcmcia_device *p_dev) if (c->io[1].end) { ret = alloc_io_space(s, &c->io[1], p_dev->io_lines); if (ret) { + struct resource tmp = c->io[0]; + /* release the previously allocated resource */ release_io_space(s, &c->io[0]); + /* but preserve the settings, for they worked... */ + c->io[0].end = resource_size(&tmp); + c->io[0].start = tmp.start; + c->io[0].flags = tmp.flags; goto out; } } else |