On 05/22/15 05:37, Vishnu Pratap Singh wrote:
> if create_dev() function fails to create the root mount device (/dev/root),
> then it goes to panic as root device not found but there is no check/log
> present in case of failure, So i have added the log in case it fails to create
> the root device. It will help in debugging.
>
> Signed-off-by: Vishnu Pratap Singh <vishnu...@samsung.com>
> ---
> init/do_mounts.h | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/init/do_mounts.h b/init/do_mounts.h
> index f5b978a..40c85e9 100644
> --- a/init/do_mounts.h
> +++ b/init/do_mounts.h
> @@ -15,8 +15,12 @@ extern int root_mountflags;
>
> static inline int create_dev(char *name, dev_t dev)
> {
> + int ret;
> sys_unlink(name);
> - return sys_mknod(name, S_IFBLK|0600, new_encode_dev(dev));
> + ret = sys_mknod(name, S_IFBLK|0600, new_encode_dev(dev));
> + if(ret < 0)
if (ret < 0)
> + printk(KERN_ERR " Failed to create %s device !! err: %d\n",
> name, ret);
Don't need space before 'Failed'.
> + return ret;
> }
>
> #if BITS_PER_LONG == 32
>
--
~Randy
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