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iio.c: Check return of fscanf

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Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
This commit is contained in:
Brendan Le Foll
2015-12-21 15:48:44 +00:00
parent e98bd8653a
commit d4b32ec1c5
1 changed files with 5 additions and 1 deletions
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6
src/iio/iio.c
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@@ -531,14 +531,18 @@ mraa_iio_get_mounting_matrix(mraa_iio_context dev, float mm[9])
{
char buf[MAX_SIZE];
FILE* fp;
int ret;
memset(buf, 0, MAX_SIZE);
snprintf(buf, MAX_SIZE, IIO_SYSFS_DEVICE "%d/" IIO_MOUNTING_MATRIX, dev->num);
fp = fopen(buf, "r");
if (fp != NULL) {
fscanf(fp, "%f %f %f\n%f %f %f\n%f %f %f\n", &mm[0], &mm[1], &mm[2], &mm[3], &mm[4], &mm[5],
ret = fscanf(fp, "%f %f %f\n%f %f %f\n%f %f %f\n", &mm[0], &mm[1], &mm[2], &mm[3], &mm[4], &mm[5],
&mm[6], &mm[7], &mm[8]);
fclose(fp);
if (ret != 9) {
return MRAA_ERROR_UNSPECIFIED;
}
return MRAA_SUCCESS;
}
return MRAA_ERROR_UNSPECIFIED;