On Thu, Nov 23, 2006 at 03:41:11AM +0900, Akinobu Mita wrote:
> The return value of platform_device_register_simple() should be
> checked by IS_ERR().
>
> This patch also fix misc_register() error case. Because misc_register()
> returns error code.
>
> Cc: Sebastien Bouchard <[email protected]>
> Signed-off-by: Akinobu Mita <[email protected]>
>
> ---
> drivers/char/tlclk.c | 5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)
>
> Index: work-fault-inject/drivers/char/tlclk.c
> ===================================================================
> --- work-fault-inject.orig/drivers/char/tlclk.c
> +++ work-fault-inject/drivers/char/tlclk.c
> @@ -792,15 +792,14 @@ static int __init tlclk_init(void)
> ret = misc_register(&tlclk_miscdev);
> if (ret < 0) {
> printk(KERN_ERR "tlclk: misc_register returns %d.\n", ret);
> - ret = -EBUSY;
results in an non-error return when there this device isn't on the
system.
* NAK *
> goto out3;
> }
>
> tlclk_device = platform_device_register_simple("telco_clock",
> -1, NULL, 0);
> - if (!tlclk_device) {
> + if (IS_ERR(tlclk_device)) {
ok
> printk(KERN_ERR "tlclk: platform_device_register failed.\n");
> - ret = -EBUSY;
> + ret = PTR_ERR(tlclk_device);
I don't know about this but I could be wrong. Please convince me.
> goto out4;
> }
>
> -
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