hwmon: (pc87360) Fix device resource declaration

It's not OK to call platform_device_add_resources() multiple times
in a row. Despite its name, this functions sets the resources, it
doesn't add them. So we have to prepare an array with all the
resources, and then call platform_device_add_resources() once.

Before this fix, only the last I/O resource would be actually
registered. The other I/O resources were leaked.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Jim Cromie <jim.cromie@gmail.com>
Cc: stable@kernel.org

diff --git a/drivers/hwmon/pc87360.c b/drivers/hwmon/pc87360.c
index 4a64b85..68e69a4 100644 (file)
--- a/drivers/hwmon/pc87360.c
+++ b/drivers/hwmon/pc87360.c
@@ -1610,11 +1610,8 @@ static struct pc87360_data *pc87360_update_device(struct device *dev)
 
 static int __init pc87360_device_add(unsigned short address)
 {
-       struct resource res = {
-               .name   = "pc87360",
-               .flags  = IORESOURCE_IO,
-       };
-       int err, i;
+       struct resource res[3];
+       int err, i, res_count;
 
        pdev = platform_device_alloc("pc87360", address);
        if (!pdev) {
@@ -1623,22 +1620,28 @@ static int __init pc87360_device_add(unsigned short address)
                goto exit;
        }
 
+       memset(res, 0, 3 * sizeof(struct resource));
+       res_count = 0;
        for (i = 0; i < 3; i++) {
                if (!extra_isa[i])
                        continue;
-               res.start = extra_isa[i];
-               res.end = extra_isa[i] + PC87360_EXTENT - 1;
+               res[res_count].start = extra_isa[i];
+               res[res_count].end = extra_isa[i] + PC87360_EXTENT - 1;
+               res[res_count].name = "pc87360",
+               res[res_count].flags = IORESOURCE_IO,
 
-               err = acpi_check_resource_conflict(&res);
+               err = acpi_check_resource_conflict(&res[res_count]);
                if (err)
                        goto exit_device_put;
 
-               err = platform_device_add_resources(pdev, &res, 1);
-               if (err) {
-                       printk(KERN_ERR "pc87360: Device resource[%d] "
-                              "addition failed (%d)\n", i, err);
-                       goto exit_device_put;
-               }
+               res_count++;
+       }
+
+       err = platform_device_add_resources(pdev, res, res_count);
+       if (err) {
+               printk(KERN_ERR "pc87360: Device resources addition failed "
+                      "(%d)\n", err);
+               goto exit_device_put;
        }
 
        err = platform_device_add(pdev);