diff options
| author |   Jason Gunthorpe <jgunthorpe@obsidianresearch.com> | 2013-09-22 14:19:18 -0600 |
|---|---|---|
| committer |   Peter Huewe <peterhuewe@gmx.de> | 2013-10-22 19:42:28 +0200 |
| commit | 6aff1fdc5d59acd7181bdd2f41b34d7bea1b6dcb (patch) | |
| tree | 5c8f321f86e19b19466d07343f49c5c3d07e52a4 /drivers/char | |
| parent | tpm atmel: Call request_region with the correct base (diff) | |
| download | linux-dev-6aff1fdc5d59acd7181bdd2f41b34d7bea1b6dcb.tar.xz linux-dev-6aff1fdc5d59acd7181bdd2f41b34d7bea1b6dcb.zip | |
tpm: Store devname in the tpm_chip
Just put the memory directly in the chip structure, rather than
in a 2nd dedicated kmalloc.
Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Reviewed-by: Joel Schopp <jschopp@linux.vnet.ibm.com>
Reviewed-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Acked-by: Ashley Lai <adlai@linux.vnet.ibm.com>
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/tpm/tpm.c | 17 | ||||
| -rw-r--r-- | drivers/char/tpm/tpm.h | 1 |
2 files changed, 7 insertions, 11 deletions
diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c index e3c974a6c522..71eb8c762880 100644 --- a/drivers/char/tpm/tpm.c +++ b/drivers/char/tpm/tpm.c @@ -1463,7 +1463,6 @@ void tpm_dev_vendor_release(struct tpm_chip *chip) chip->vendor.release(chip->dev); clear_bit(chip->dev_num, dev_mask); - kfree(chip->vendor.miscdev.name); } EXPORT_SYMBOL_GPL(tpm_dev_vendor_release); @@ -1496,17 +1495,13 @@ EXPORT_SYMBOL_GPL(tpm_dev_release); struct tpm_chip *tpm_register_hardware(struct device *dev, const struct tpm_vendor_specific *entry) { -#define DEVNAME_SIZE 7 - - char *devname; struct tpm_chip *chip; /* Driver specific per-device data */ chip = kzalloc(sizeof(*chip), GFP_KERNEL); - devname = kmalloc(DEVNAME_SIZE, GFP_KERNEL); - if (chip == NULL || devname == NULL) - goto out_free; + if (chip == NULL) + return NULL; mutex_init(&chip->buffer_mutex); mutex_init(&chip->tpm_mutex); @@ -1531,8 +1526,9 @@ struct tpm_chip *tpm_register_hardware(struct device *dev, set_bit(chip->dev_num, dev_mask); - scnprintf(devname, DEVNAME_SIZE, "%s%d", "tpm", chip->dev_num); - chip->vendor.miscdev.name = devname; + scnprintf(chip->devname, sizeof(chip->devname), "%s%d", "tpm", + chip->dev_num); + chip->vendor.miscdev.name = chip->devname; chip->vendor.miscdev.parent = dev; chip->dev = get_device(dev); @@ -1558,7 +1554,7 @@ struct tpm_chip *tpm_register_hardware(struct device *dev, goto put_device; } - chip->bios_dir = tpm_bios_log_setup(devname); + chip->bios_dir = tpm_bios_log_setup(chip->devname); /* Make chip available */ spin_lock(&driver_lock); @@ -1571,7 +1567,6 @@ put_device: put_device(chip->dev); out_free: kfree(chip); - kfree(devname); return NULL; } EXPORT_SYMBOL_GPL(tpm_register_hardware); diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h index a7bfc176ed43..0df18b56b2c5 100644 --- a/drivers/char/tpm/tpm.h +++ b/drivers/char/tpm/tpm.h @@ -122,6 +122,7 @@ struct tpm_chip { struct device *dev; /* Device stuff */ int dev_num; /* /dev/tpm# */ + char devname[7]; unsigned long is_open; /* only one allowed */ int time_expired; |