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net: getenv_ip: check return value of string_to_ip 

Return 0 if we encounter an error.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Wolfram Sang 2011-09-25 22:54:12 +02:00 committed by Sascha Hauer
parent a3ccaecb1c
commit a55147be13
1 changed files with 2 additions and 1 deletions
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3
net/net.c
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@ -136,7 +136,8 @@ IPaddr_t getenv_ip(const char *name)
if (!var)
return 0;
string_to_ip(var, &ip);
if (string_to_ip(var, &ip))
return 0;
return ip;
}