[PATCH] pcmcia: ds.c cleanup

Clean up ds.c

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 23 insertions, 0 deletions

diff --git a/drivers/pcmcia/pcmcia_ioctl.c b/drivers/pcmcia/pcmcia_ioctl.c
index fa2a79d29e16..3084d8a3ba41 100644
--- a/drivers/pcmcia/pcmcia_ioctl.c
+++ b/drivers/pcmcia/pcmcia_ioctl.c
@@ -71,6 +71,29 @@ extern int ds_pc_debug;
 #define ds_dbg(lvl, fmt, arg...) do { } while (0)
 #endif
 
+static const char *release = "Linux Kernel Card Services";
+
+/** pcmcia_get_card_services_info
+ *
+ * Return information about this version of Card Services
+ */
+static int pcmcia_get_card_services_info(servinfo_t *info)
+{
+        unsigned int socket_count = 0;
+        struct list_head *tmp;
+        info->Signature[0] = 'C';
+        info->Signature[1] = 'S';
+        down_read(&pcmcia_socket_list_rwsem);
+        list_for_each(tmp, &pcmcia_socket_list)
+                socket_count++;
+        up_read(&pcmcia_socket_list_rwsem);
+        info->Count = socket_count;
+        info->Revision = CS_RELEASE_CODE;
+        info->CSLevel = 0x0210;
+        info->VendorString = (char *)release;
+        return CS_SUCCESS;
+} /* get_card_services_info */
+
 
 /* backwards-compatible accessing of driver --- by name! */