diff --git a/hardware/agilent-dmm/api.c b/hardware/agilent-dmm/api.c
index 31c2fe11..167d4cc8 100644
--- a/hardware/agilent-dmm/api.c
+++ b/hardware/agilent-dmm/api.c
@@ -250,7 +250,6 @@ static int hw_cleanup(void)
 static int hw_info_get(int info_id, const void **data,
        const struct sr_dev_inst *sdi)
 {
-
 	(void)sdi;
 
 	switch (info_id) {
diff --git a/hardware/alsa/api.c b/hardware/alsa/api.c
index 4591fee4..57313461 100644
--- a/hardware/alsa/api.c
+++ b/hardware/alsa/api.c
@@ -163,7 +163,6 @@ static int hw_info_get(int info_id, const void **data,
 		*data = &devc->supp_rates;
 		break;
 	default:
-		sr_err("Invalid info_id: %d.", info_id);
 		return SR_ERR_ARG;
 	}
 
diff --git a/hardware/colead-slm/api.c b/hardware/colead-slm/api.c
index 62779385..3135a5f3 100644
--- a/hardware/colead-slm/api.c
+++ b/hardware/colead-slm/api.c
@@ -194,7 +194,6 @@ static int hw_cleanup(void)
 static int hw_info_get(int info_id, const void **data,
 		       const struct sr_dev_inst *sdi)
 {
-	
 	(void)sdi;
 
 	switch (info_id) {
diff --git a/hardware/fluke-dmm/api.c b/hardware/fluke-dmm/api.c
index 93869a48..a7272ad9 100644
--- a/hardware/fluke-dmm/api.c
+++ b/hardware/fluke-dmm/api.c
@@ -284,7 +284,6 @@ static int hw_cleanup(void)
 static int hw_info_get(int info_id, const void **data,
        const struct sr_dev_inst *sdi)
 {
-
 	(void)sdi;
 
 	switch (info_id) {
diff --git a/hardware/lascar-el-usb/api.c b/hardware/lascar-el-usb/api.c
index 210480cc..e9875705 100644
--- a/hardware/lascar-el-usb/api.c
+++ b/hardware/lascar-el-usb/api.c
@@ -216,7 +216,6 @@ static int hw_cleanup(void)
 static int hw_info_get(int info_id, const void **data,
 		const struct sr_dev_inst *sdi)
 {
-
 	(void)sdi;
 
 	switch (info_id) {
@@ -227,7 +226,6 @@ static int hw_info_get(int info_id, const void **data,
 		*data = hwcaps;
 		break;
 	default:
-		sr_err("Unknown info_id: %d.", info_id);
 		return SR_ERR_ARG;
 	}
 
diff --git a/hardware/nexus-osciprime/api.c b/hardware/nexus-osciprime/api.c
index 8624b841..bb631be2 100644
--- a/hardware/nexus-osciprime/api.c
+++ b/hardware/nexus-osciprime/api.c
@@ -268,14 +268,12 @@ static int hw_cleanup(void)
 static int hw_info_get(int info_id, const void **data,
 		       const struct sr_dev_inst *sdi)
 {
-
 	/* TODO */
 	(void)data;
 	(void)sdi;
 
 	switch (info_id) {
 	default:
-		sr_err("Unknown info_id: %d.", info_id);
 		return SR_ERR_ARG;
 	}
 
diff --git a/hardware/rigol-ds1xx2/api.c b/hardware/rigol-ds1xx2/api.c
index 1590f060..64f8c222 100644
--- a/hardware/rigol-ds1xx2/api.c
+++ b/hardware/rigol-ds1xx2/api.c
@@ -347,7 +347,6 @@ static int hw_info_get(int info_id, const void **data,
 		*data = coupling;
 		break;
 	default:
-		sr_err("Unknown info_id: %d.", info_id);
 		return SR_ERR_ARG;
 	}
 
diff --git a/hardware/tondaj-sl-814/api.c b/hardware/tondaj-sl-814/api.c
index 28e9bc85..5b7ed363 100644
--- a/hardware/tondaj-sl-814/api.c
+++ b/hardware/tondaj-sl-814/api.c
@@ -208,7 +208,6 @@ static int hw_info_get(int info_id, const void **data,
 		*data = hwcaps;
 		break;
 	default:
-		sr_err("Unknown info_id: %d.", info_id);
 		return SR_ERR_ARG;
 	}
 
diff --git a/hardware/uni-t-dmm/api.c b/hardware/uni-t-dmm/api.c
index e0d36661..d618ef44 100644
--- a/hardware/uni-t-dmm/api.c
+++ b/hardware/uni-t-dmm/api.c
@@ -186,7 +186,6 @@ static int hw_info_get(int info_id, const void **data,
 		return SR_ERR_ARG;
 		break;
 	default:
-		sr_err("%s: Unknown info_id %d.", __func__, info_id);
 		return SR_ERR_ARG;
 		break;
 	}
diff --git a/hardware/victor-dmm/api.c b/hardware/victor-dmm/api.c
index 496b51b7..23c12e9d 100644
--- a/hardware/victor-dmm/api.c
+++ b/hardware/victor-dmm/api.c
@@ -254,7 +254,6 @@ static int hw_info_get(int info_id, const void **data,
 		*data = hwcaps;
 		break;
 	default:
-		sr_err("Unknown info_id: %d.", info_id);
 		return SR_ERR_ARG;
 	}