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Commit a20874f7 authored by Joshua Clayton's avatar Joshua Clayton Committed by Mark Brown
Browse files

spi: spidev_test: check error 



Check the result of sscanf to verify a result was found.
report and error and abort if pattern was not found.

Signed-off-by: default avatarJoshua Clayton <stillcompiling@gmail.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 983b2788

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 {