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-rw-r--r--drivers/hwmon/lm78.c25
1 files changed, 12 insertions, 13 deletions
diff --git a/drivers/hwmon/lm78.c b/drivers/hwmon/lm78.c
index cadcbd90ff3b..72ff2c4e757d 100644
--- a/drivers/hwmon/lm78.c
+++ b/drivers/hwmon/lm78.c
@@ -851,17 +851,16 @@ static struct lm78_data *lm78_update_device(struct device *dev)
static int __init lm78_isa_found(unsigned short address)
{
int val, save, found = 0;
-
- /* We have to request the region in two parts because some
- boards declare base+4 to base+7 as a PNP device */
- if (!request_region(address, 4, "lm78")) {
- pr_debug("lm78: Failed to request low part of region\n");
- return 0;
- }
- if (!request_region(address + 4, 4, "lm78")) {
- pr_debug("lm78: Failed to request high part of region\n");
- release_region(address, 4);
- return 0;
+ int port;
+
+ /* Some boards declare base+0 to base+7 as a PNP device, some base+4
+ * to base+7 and some base+5 to base+6. So we better request each port
+ * individually for the probing phase. */
+ for (port = address; port < address + LM78_EXTENT; port++) {
+ if (!request_region(port, 1, "lm78")) {
+ pr_debug("lm78: Failed to request port 0x%x\n", port);
+ goto release;
+ }
}
#define REALLY_SLOW_IO
@@ -925,8 +924,8 @@ static int __init lm78_isa_found(unsigned short address)
val & 0x80 ? "LM79" : "LM78", (int)address);
release:
- release_region(address + 4, 4);
- release_region(address, 4);
+ for (port--; port >= address; port--)
+ release_region(port, 1);
return found;
}