[U-Boot] [PATCH] cmd_nand: show nand scrub confirmation character

[Florian Fainelli <f.fainelli@gmail.com>]

On Friday 19 March 2010 23:02:11 Scott Wood wrote:
> On Fri, Mar 19, 2010 at 04:06:16PM +0100, Florian Fainelli wrote:
> > When issuing a nand scrub command, the entered character is not displayed
> > this may be confusing. This patch makes the input character being
> > displayed if it is a 'y' so that an user knows he is about to scrub his
> > nand.
> >
> > Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
> > ---
> > diff --git a/common/cmd_nand.c b/common/cmd_nand.c
> > index 075a8af..69cc0a8 100644
> > --- a/common/cmd_nand.c
> > +++ b/common/cmd_nand.c
> > @@ -327,8 +327,10 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc,
> > char *argv[]) "are sure of what you are doing!\n"
> >  			     "\nReally scrub this NAND flash? <y/N>\n");
> >
> > -			if (getc() == 'y' && getc() == '\r') {
> > -				opts.scrub = 1;
> > +			if (getc() == 'y') {
> > +				puts("y");
> > +				if (getc() == '\r')
> > +					opts.scrub = 1;
> >  			} else {
> >  				puts("scrub aborted\n");
> >  				return -1;
> 
> You're changing the behavior in case the user presses y and then does
> something other than hit return.  You won't set scrub = 1, but you'll
> continue with the erase rather than printing "scrub aborted" and returning.

That's correct, what about this:
--
From: Florian Fainelli <f.fainelli@gmail.com>
Subject: [PATCH] cmd_nand: show nand scrub confirmation character

When issuing a nand scrub command, the entered character is not displayed
this may be confusing. This patch makes the input character being
displayed if it is a 'y' so that an user knows he is about to scrub his
nand.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
diff --git a/common/cmd_nand.c b/common/cmd_nand.c
index 075a8af..9b0c930 100644
--- a/common/cmd_nand.c
+++ b/common/cmd_nand.c
@@ -327,8 +327,14 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 			     "are sure of what you are doing!\n"
 			     "\nReally scrub this NAND flash? <y/N>\n");
 
-			if (getc() == 'y' && getc() == '\r') {
-				opts.scrub = 1;
+			if (getc() == 'y') {
+				puts("y");
+				if (getc() == '\r')
+					opts.scrub = 1;
+				else {
+					puts("scrub aborted\n");
+					return -1;
+				}
 			} else {
 				puts("scrub aborted\n");
 				return -1;