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path: root/drivers/pcmcia/ds.c
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Diffstat (limited to 'drivers/pcmcia/ds.c')
-rw-r--r--drivers/pcmcia/ds.c23
1 files changed, 15 insertions, 8 deletions
diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c
index 52d33b2a5bc..4014cf8e4a2 100644
--- a/drivers/pcmcia/ds.c
+++ b/drivers/pcmcia/ds.c
@@ -24,6 +24,7 @@
#include <linux/firmware.h>
#include <linux/kref.h>
#include <linux/dma-mapping.h>
+#include <linux/slab.h>
#include <pcmcia/cs_types.h>
#include <pcmcia/cs.h>
@@ -686,12 +687,10 @@ static void pcmcia_requery(struct pcmcia_socket *s)
new_funcs = mfc.nfn;
else
new_funcs = 1;
- if (old_funcs > new_funcs) {
+ if (old_funcs != new_funcs) {
+ /* we need to re-start */
pcmcia_card_remove(s, NULL);
pcmcia_card_add(s);
- } else if (new_funcs > old_funcs) {
- s->functions = new_funcs;
- pcmcia_device_add(s, 1);
}
}
@@ -727,6 +726,8 @@ static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename)
struct pcmcia_socket *s = dev->socket;
const struct firmware *fw;
int ret = -ENOMEM;
+ cistpl_longlink_mfc_t mfc;
+ int old_funcs, new_funcs = 1;
if (!filename)
return -EINVAL;
@@ -749,6 +750,14 @@ static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename)
goto release;
}
+ /* we need to re-start if the number of functions changed */
+ old_funcs = s->functions;
+ if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC,
+ &mfc))
+ new_funcs = mfc.nfn;
+
+ if (old_funcs != new_funcs)
+ ret = -EBUSY;
/* update information */
pcmcia_device_query(dev);
@@ -857,10 +866,8 @@ static inline int pcmcia_devmatch(struct pcmcia_device *dev,
if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) {
dev_dbg(&dev->dev, "device needs a fake CIS\n");
if (!dev->socket->fake_cis)
- pcmcia_load_firmware(dev, did->cisfile);
-
- if (!dev->socket->fake_cis)
- return 0;
+ if (pcmcia_load_firmware(dev, did->cisfile))
+ return 0;
}
if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) {