spi: spidev_test: check error (a20874f7) · Commits · 戴 / test

Check the result of sscanf to verify a result was found. report and error and abort if pattern was not found. Signed-off-by:

tools/spi/spidev_test.c

+5 −1

Original line number	Diff line number	Diff line
		@@ -86,13 +86,17 @@ static void hex_dump(const void src, size_t length, size_t line_size, char pre
		static int unescape(char _dst, char _src, size_t len)
		{
		int ret = 0;
		int match;
		char *src = _src;
		char *dst = _dst;
		unsigned int ch;

		while (*src) {
		if (src == '\\' && (src+1) == 'x') {
		sscanf(src + 2, "%2x", &ch);
		match = sscanf(src + 2, "%2x", &ch);
		if (!match)
		pabort("malformed input string");

		src += 4;
		*dst++ = (unsigned char)ch;
		} else {