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path: root/drivers/misc/hdpuftrs/hdpu_nexus.c
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Diffstat (limited to 'drivers/misc/hdpuftrs/hdpu_nexus.c')
-rw-r--r--drivers/misc/hdpuftrs/hdpu_nexus.c24
1 files changed, 14 insertions, 10 deletions
diff --git a/drivers/misc/hdpuftrs/hdpu_nexus.c b/drivers/misc/hdpuftrs/hdpu_nexus.c
index 60c8b26f067..fd3f3c22115 100644
--- a/drivers/misc/hdpuftrs/hdpu_nexus.c
+++ b/drivers/misc/hdpuftrs/hdpu_nexus.c
@@ -40,40 +40,43 @@ static struct platform_driver hdpu_nexus_driver = {
int hdpu_slot_id_read(char *buffer, char **buffer_location, off_t offset,
int buffer_length, int *zero, void *ptr)
{
-
if (offset > 0)
return 0;
+
return sprintf(buffer, "%d\n", slot_id);
}
int hdpu_chassis_id_read(char *buffer, char **buffer_location, off_t offset,
int buffer_length, int *zero, void *ptr)
{
-
if (offset > 0)
return 0;
+
return sprintf(buffer, "%d\n", chassis_id);
}
static int hdpu_nexus_probe(struct platform_device *pdev)
{
struct resource *res;
+ int *nexus_id_addr;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- int *nexus_id_addr;
- nexus_id_addr =
- ioremap(res->start, (unsigned long)(res->end - res->start));
+ nexus_id_addr = ioremap(res->start,
+ (unsigned long)(res->end - res->start));
if (nexus_id_addr) {
slot_id = (*nexus_id_addr >> 8) & 0x1f;
chassis_id = *nexus_id_addr & 0xff;
iounmap(nexus_id_addr);
- } else
- printk("Could not map slot id\n");
+ } else {
+ printk(KERN_ERR "Could not map slot id\n");
+ }
+
hdpu_slot_id = create_proc_entry("sky_slot_id", 0666, &proc_root);
hdpu_slot_id->read_proc = hdpu_slot_id_read;
hdpu_chassis_id = create_proc_entry("sky_chassis_id", 0666, &proc_root);
hdpu_chassis_id->read_proc = hdpu_chassis_id_read;
+
return 0;
}
@@ -81,18 +84,19 @@ static int hdpu_nexus_remove(struct platform_device *pdev)
{
slot_id = -1;
chassis_id = -1;
+
remove_proc_entry("sky_slot_id", &proc_root);
remove_proc_entry("sky_chassis_id", &proc_root);
+
hdpu_slot_id = 0;
hdpu_chassis_id = 0;
+
return 0;
}
static int __init nexus_init(void)
{
- int rc;
- rc = platform_driver_register(&hdpu_nexus_driver);
- return rc;
+ return platform_driver_register(&hdpu_nexus_driver);
}
static void __exit nexus_exit(void)