st_kim: Handle case of no device found for ID 0

[pandora-kernel.git] / drivers / misc / ti-st / st_kim.c

diff --git a/drivers/misc/ti-st/st_kim.c b/drivers/misc/ti-st/st_kim.c
index b4488c8..3613c3b 100644 (file)
--- a/drivers/misc/ti-st/st_kim.c
+++ b/drivers/misc/ti-st/st_kim.c
@@ -30,6 +30,7 @@
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
 #include <linux/sched.h>
+#include <linux/sysfs.h>
 #include <linux/tty.h>
 
 #include <linux/skbuff.h>
@@ -603,6 +604,10 @@ void st_kim_ref(struct st_data_s **core_data, int id)
        struct kim_data_s       *kim_gdata;
        /* get kim_gdata reference from platform device */
        pdev = st_get_plat_device(id);
+       if (!pdev) {
+               *core_data = NULL;
+               return;
+       }
        kim_gdata = dev_get_drvdata(&pdev->dev);
        *core_data = kim_gdata->core_data;
 }