From: Dominik Brodowski <linux@dominikbrodowski.net>
Date: Thu, 8 Apr 2010 17:23:07 +0000 (+0200)
Subject: pcmcia: fix io_probe due to parent (PCI) resources
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=509b0865fbd8ab6c820397706dde980c1c285538;p=openwrt%2Fstaging%2Fblogic.git

pcmcia: fix io_probe due to parent (PCI) resources

Similar to commit 7a96e87d, we need to be aware of any parent PCI
device when requesting IO regions, even only for testing
("probing").

Reported-by: Komuro <komurojun-mbn@nifty.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
---

diff --git a/drivers/pcmcia/rsrc_nonstatic.c b/drivers/pcmcia/rsrc_nonstatic.c
index 559069a80a3b..1178a823fbc6 100644
--- a/drivers/pcmcia/rsrc_nonstatic.c
+++ b/drivers/pcmcia/rsrc_nonstatic.c
@@ -214,7 +214,7 @@ static void do_io_probe(struct pcmcia_socket *s, unsigned int base,
 		return;
 	}
 	for (i = base, most = 0; i < base+num; i += 8) {
-		res = claim_region(NULL, i, 8, IORESOURCE_IO, "PCMCIA ioprobe");
+		res = claim_region(s, i, 8, IORESOURCE_IO, "PCMCIA ioprobe");
 		if (!res)
 			continue;
 		hole = inb(i);
@@ -231,9 +231,14 @@ static void do_io_probe(struct pcmcia_socket *s, unsigned int base,
 
 	bad = any = 0;
 	for (i = base; i < base+num; i += 8) {
-		res = claim_region(NULL, i, 8, IORESOURCE_IO, "PCMCIA ioprobe");
-		if (!res)
+		res = claim_region(s, i, 8, IORESOURCE_IO, "PCMCIA ioprobe");
+		if (!res) {
+			if (!any)
+				printk(" excluding");
+			if (!bad)
+				bad = any = i;
 			continue;
+		}
 		for (j = 0; j < 8; j++)
 			if (inb(i+j) != most)
 				break;
@@ -253,6 +258,7 @@ static void do_io_probe(struct pcmcia_socket *s, unsigned int base,
 	}
 	if (bad) {
 		if ((num > 16) && (bad == base) && (i == base+num)) {
+			sub_interval(&s_data->io_db, bad, i-bad);
 			printk(" nothing: probe failed.\n");
 			return;
 		} else {