[PATCH 4/4] tools: iio: iio_utils: Move general error messages to stderr

[Cristina Opriceana <cristina.opriceana@xxxxxxxxx>]

This patch replaces stdout general error messages to a more appropriate
standard stream to ensure consistency.

Signed-off-by: Cristina Opriceana <cristina.opriceana@xxxxxxxxx>
---
 tools/iio/iio_utils.c | 17 ++++++++++-------
 tools/iio/lsiio.c     |  2 +-
 2 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/tools/iio/iio_utils.c b/tools/iio/iio_utils.c
index 46dfa3f..8b218bd 100644
--- a/tools/iio/iio_utils.c
+++ b/tools/iio/iio_utils.c
@@ -158,7 +158,8 @@ int iioutils_get_type(unsigned *is_signed, unsigned *bytes, unsigned *bits_used,
 				goto error_close_sysfsfp;
 			} else if (ret != 5) {
 				ret = -EIO;
-				printf("scan type description didn't match\n");
+				fprintf(stderr,
+					"scan type description didn't match\n");
 				goto error_close_sysfsfp;
 			}
 
@@ -572,7 +573,7 @@ int find_type_by_name(const char *name, const char *type)
 
 	dp = opendir(iio_dir);
 	if (dp == NULL) {
-		printf("No industrialio devices available\n");
+		fprintf(stderr, "No industrialio devices available\n");
 		return -ENODEV;
 	}
 
@@ -709,8 +710,9 @@ static int _write_sysfs_int(const char *filename, const char *basedir, int val,
 		}
 
 		if (test != val) {
-			printf("Possible failure in int write %d to %s/%s\n",
-			       val, basedir, filename);
+			fprintf(stderr,
+				"Possible failure in int write %d to %s/%s\n",
+				val, basedir, filename);
 			ret = -1;
 		}
 	}
@@ -806,9 +808,10 @@ static int _write_sysfs_string(const char *filename, const char *basedir,
 		}
 
 		if (strcmp(temp, val) != 0) {
-			printf("Possible failure in string write of %s "
-			       "Should be %s written to %s/%s\n", temp, val,
-			       basedir, filename);
+			fprintf(stderr,
+				"Possible failure in string write of %s "
+				"Should be %s written to %s/%s\n", temp, val,
+				basedir, filename);
 			ret = -1;
 		}
 	}
diff --git a/tools/iio/lsiio.c b/tools/iio/lsiio.c
index 7f432a5..31996de 100644
--- a/tools/iio/lsiio.c
+++ b/tools/iio/lsiio.c
@@ -108,7 +108,7 @@ static int dump_devices(void)
 
 	dp = opendir(iio_dir);
 	if (dp == NULL) {
-		printf("No industrial I/O devices available\n");
+		fprintf(stderr, "No industrial I/O devices available\n");
 		return -ENODEV;
 	}
 
-- 
1.9.1

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