i2c: stub: Remember the number of emulated chips
This makes initialization, cleanup and look-up easier.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
diff --git a/drivers/i2c/i2c-stub.c b/drivers/i2c/i2c-stub.c
index e0bb465..ad52f07 100644
--- a/drivers/i2c/i2c-stub.c
+++ b/drivers/i2c/i2c-stub.c
@@ -68,6 +68,7 @@
};
static struct stub_chip *stub_chips;
+static int stub_chips_nr;
static struct smbus_block_data *stub_find_block(struct device *dev,
struct stub_chip *chip,
@@ -101,7 +102,7 @@
struct smbus_block_data *b;
/* Search for the right chip */
- for (i = 0; i < MAX_CHIPS && chip_addr[i]; i++) {
+ for (i = 0; i < stub_chips_nr; i++) {
if (addr == chip_addr[i]) {
chip = stub_chips + i;
break;
@@ -281,12 +282,14 @@
}
/* Allocate memory for all chips at once */
- stub_chips = kzalloc(i * sizeof(struct stub_chip), GFP_KERNEL);
+ stub_chips_nr = i;
+ stub_chips = kcalloc(stub_chips_nr, sizeof(struct stub_chip),
+ GFP_KERNEL);
if (!stub_chips) {
pr_err("i2c-stub: Out of memory\n");
return -ENOMEM;
}
- for (i--; i >= 0; i--)
+ for (i = 0; i < stub_chips_nr; i++)
INIT_LIST_HEAD(&stub_chips[i].smbus_blocks);
ret = i2c_add_adapter(&stub_adapter);