[U-Boot] [RFC/PATCHv2 1/2] Common/command: Guard strchr/strlen from NULL pointer

[Wolfgang Denk <wd@denx.de>]

Dear Thomas Weber,

In message <1290600472-23147-1-git-send-email-weber@corscience.de> you wrote:
> Guard strchr/strlen from being called with NULL pointer.
> This line is crashing when command "env" is called without subcommand.
> 
> The cmd is NULL in this case because the calling function "do_env"
> decremented the argc without checking if there are still arguments available.
> 
> Signed-off-by: Thomas Weber <weber@corscience.de>
> ---
> Changes for v2: 
> 	- Use shorter way to leave function in error case.
> 
>  common/command.c |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-)

Applied, thanks.

Best regards,

Wolfgang Denk

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