diff options
| author | Devendra Naga <develkernel412222@gmail.com> | 2012-07-15 18:52:02 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-07-17 10:27:38 -0700 |
| commit | 8397c76a2c209997c7119bede2f26e51d8c786bc (patch) | |
| tree | 25193b6ceac253bae795d86d55a331775674d7d7 /drivers/char/bsr.c | |
| parent | 483136ea0e2b23f2aebf57e1a36a06dec4223a92 (diff) | |
powerpc/BSR: cleanup the error path of bsr_init
class_create if succeeded returns a pointer to the struct class,
and if it fails, it returns a value enclosed by the pointer, which
can be read by using PTR_ERR.
Handle the error and return it.
result is for error checking of the alloc_chrdev_region, instead
ret can be used, and also if the alloc_chrdev_region fail,
we are still returning -ENODEV, use ret and the error path will
take care of returning of the ret.
Signed-off-by: Devendra Naga <develkernel412222@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/char/bsr.c')
| -rw-r--r-- | drivers/char/bsr.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/char/bsr.c b/drivers/char/bsr.c index 0c688232aab..97467053a01 100644 --- a/drivers/char/bsr.c +++ b/drivers/char/bsr.c @@ -297,7 +297,6 @@ static int __init bsr_init(void) struct device_node *np; dev_t bsr_dev; int ret = -ENODEV; - int result; np = of_find_compatible_node(NULL, NULL, "ibm,bsr"); if (!np) @@ -306,13 +305,14 @@ static int __init bsr_init(void) bsr_class = class_create(THIS_MODULE, "bsr"); if (IS_ERR(bsr_class)) { printk(KERN_ERR "class_create() failed for bsr_class\n"); + ret = PTR_ERR(bsr_class); goto out_err_1; } bsr_class->dev_attrs = bsr_dev_attrs; - result = alloc_chrdev_region(&bsr_dev, 0, BSR_MAX_DEVS, "bsr"); + ret = alloc_chrdev_region(&bsr_dev, 0, BSR_MAX_DEVS, "bsr"); bsr_major = MAJOR(bsr_dev); - if (result < 0) { + if (ret < 0) { printk(KERN_ERR "alloc_chrdev_region() failed for bsr\n"); goto out_err_2; } |