diff options
| author | Jean Delvare <jdelvare@suse.de> | 2014-07-10 12:45:11 +0200 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2014-07-17 19:56:10 +0200 |
| commit | 1dff59831b2b78122a883f44269be6597b378afa (patch) | |
| tree | 4f7d24a008efeaae85b91e6d423a17486ec67628 | |
| parent | 6f16b75a41abbbd11c4c8b7c62eb66604879b981 (diff) | |
| download | linux-next-1dff59831b2b78122a883f44269be6597b378afa.tar.gz | |
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>
| -rw-r--r-- | drivers/i2c/i2c-stub.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/i2c/i2c-stub.c b/drivers/i2c/i2c-stub.c index e0bb4655661d..ad52f0701198 100644 --- a/drivers/i2c/i2c-stub.c +++ b/drivers/i2c/i2c-stub.c @@ -68,6 +68,7 @@ struct stub_chip { }; 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 @@ static s32 stub_xfer(struct i2c_adapter *adap, u16 addr, unsigned short flags, 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 @@ static int __init i2c_stub_init(void) } /* 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); |