From: Alexander Kurz Date: Sun, 25 Apr 2010 09:44:35 +0000 (+0400) Subject: pcmcia: fix matching rules for pseudo-multi-function cards X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=83bf6f11e82eba8533f8dbd241b2c2825e42ae5d;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git 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 Signed-off-by: Dominik Brodowski --- 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;