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Commit dc8b5d6e authored by Hartmut Knaack's avatar Hartmut Knaack Committed by Jonathan Cameron
Browse files

tools:iio:iio_utils: check amount of matches 



fscanf() usually returns the number of input items successfully matched
and assigned, which can be fewer than provided (or even zero).
Add a check in iioutils_get_type() to make sure all items are matched.

Signed-off-by: default avatarHartmut Knaack <knaack.h@gmx.de>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent 8e926134

tools/iio/iio_utils.c

+4 −0
Original line number Original line Diff line number Diff line
@@ -144,6 +144,10 @@ int iioutils_get_type(unsigned *is_signed, 
				ret = -errno;

				ret = -errno;

				printf("failed to pass scan type description\n");

				printf("failed to pass scan type description\n");

				goto error_close_sysfsfp;

				goto error_close_sysfsfp;

			} else if (ret != 5) {

				ret = -EIO;

				printf("scan type description didn't match\n");

				goto error_close_sysfsfp;

			}

			}

			*be = (endianchar == 'b');

			*be = (endianchar == 'b');

			*bytes = padint / 8;

			*bytes = padint / 8;