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authorAlexander Kurz <linux@kbdbabel.org>2010-04-25 13:44:35 +0400
committerDominik Brodowski <linux@dominikbrodowski.net>2010-04-26 20:09:07 +0200
commit83bf6f11e82eba8533f8dbd241b2c2825e42ae5d (patch)
tree99e30a2ea81ae4dd5bad9120e0698014f51ca0a4 /drivers/pcmcia
parent04de0816173c86948b75da93a6344a0a02bbec4d (diff)
pcmcia: fix matching rules for pseudo-multi-function cards
Prevent PCMCIA_DEV_ID_MATCH_FUNC_ID from grabbing PFC-cards: I changed the code, so that the first matching struct pcmcia_device_id _PFC_ entry will mark the card has_pfc, preventing PCMCIA_DEV_ID_MATCH_FUNC_ID to match. [linux-pcmcia@lists.infradead.org: re-order commit message] Signed-off-by: Alexander Kurz <linux@kbdbabel.org> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'drivers/pcmcia')
-rw-r--r--drivers/pcmcia/ds.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c
index 92a5af8aa0b4..508f94a2a78d 100644
--- a/drivers/pcmcia/ds.c
+++ b/drivers/pcmcia/ds.c
@@ -820,11 +820,12 @@ static inline int pcmcia_devmatch(struct pcmcia_device *dev,
}
if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) {
- if (dev->device_no != did->device_no)
- return 0;
+ dev_dbg(&dev->dev, "this is a pseudo-multi-function device\n");
mutex_lock(&dev->socket->ops_mutex);
dev->socket->pcmcia_state.has_pfc = 1;
mutex_unlock(&dev->socket->ops_mutex);
+ if (dev->device_no != did->device_no)
+ return 0;
}
if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) {
@@ -835,7 +836,7 @@ static inline int pcmcia_devmatch(struct pcmcia_device *dev,
/* if this is a pseudo-multi-function device,
* we need explicit matches */
- if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO)
+ if (dev->socket->pcmcia_state.has_pfc)
return 0;
if (dev->device_no)
return 0;