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tools:iio:iio_utils: check amount of matches

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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: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Hartmut Knaack 2015-05-31 14:39:59 +02:00 committed by Jonathan Cameron
parent 8e926134ef
commit dc8b5d6e63
1 changed files with 4 additions and 0 deletions
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4
tools/iio/iio_utils.c
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@ -144,6 +144,10 @@ int iioutils_get_type(unsigned *is_signed,
ret = -errno;
printf("failed to pass scan type description\n");
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');
*bytes = padint / 8;