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Fix return value in trailing_strtoln()

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This function should return -1 if there is no trailing integer in the
string. Instead it returns 0. Fix it by checking for this condition at the
start.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass 2016-10-05 20:42:11 -06:00 committed by Bin Meng
parent a5b8722532
commit b91c6a1209
1 changed files with 5 additions and 3 deletions
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8
lib/strto.c
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@ -160,9 +160,11 @@ long trailing_strtoln(const char *str, const char *end)
if (!end)
end = str + strlen(str);
for (p = end - 1; p > str; p--) {
if (!isdigit(*p))
return simple_strtoul(p + 1, NULL, 10);
if (isdigit(end[-1])) {
for (p = end - 1; p > str; p--) {
if (!isdigit(*p))
return simple_strtoul(p + 1, NULL, 10);
}
}
return -1;