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lib: sbi: Fix printc
Because *out needs to reserve a byte to hold '\0', no more characters should be added to the buffer when *out has one byte left, and the buffer size *out_len should not be modified. this patch prevents the correction of *out_len when *out_len is 1. Signed-off-by: Xiang W <wxjstz@126.com> Reviewed-by: Anup Patel <anup@brainfault.org>
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1 changed files with 2 additions and 3 deletions
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@ -142,10 +142,9 @@ static void printc(char **out, u32 *out_len, char ch)
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if (!out_len || *out_len > 1) {
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*(*out)++ = ch;
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**out = '\0';
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if (out_len)
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--(*out_len);
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}
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if (out_len && *out_len > 0)
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--(*out_len);
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}
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static int prints(char **out, u32 *out_len, const char *string, int width,
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