From: v1ne <redacted>
Date: Tue, 23 Feb 2021 21:36:33 +0000 (+0100)
Subject: ols: Don't store temporary data in device context
X-Git-Url: https://sigrok.org/gitweb/?p=libsigrok.git;a=commitdiff_plain;h=cfe55d09538457ae4d620a0b8c1c81ea979e4954

ols: Don't store temporary data in device context
---

diff --git a/src/hardware/openbench-logic-sniffer/protocol.c b/src/hardware/openbench-logic-sniffer/protocol.c
index dbf29143..bf065c76 100644
--- a/src/hardware/openbench-logic-sniffer/protocol.c
+++ b/src/hardware/openbench-logic-sniffer/protocol.c
@@ -476,7 +476,7 @@ SR_PRIV int ols_receive_data(int fd, int revents, void *cb_data)
 				 * the number of channels.
 				 */
 				j = 0;
-				memset(devc->tmp_sample, 0, 4);
+				uint8_t tmp_sample[4] = { 0, 0, 0, 0 };
 				for (i = 0; i < 4; i++) {
 					if (((devc->capture_flags >> 2) &
 					     (1 << i)) == 0) {
@@ -485,17 +485,17 @@ SR_PRIV int ols_receive_data(int fd, int revents, void *cb_data)
 						 * enabled, copy from received
 						 * sample.
 						 */
-						devc->tmp_sample[i] =
+						tmp_sample[i] =
 							devc->sample[j++];
 					} else if (devc->capture_flags &
 							   CAPTURE_FLAG_DEMUX &&
 						   (i > 2)) {
 						/* group 2 & 3 get added to 0 & 1 */
-						devc->tmp_sample[i - 2] =
+						tmp_sample[i - 2] =
 							devc->sample[j++];
 					}
 				}
-				memcpy(devc->sample, devc->tmp_sample, 4);
+				memcpy(devc->sample, tmp_sample, 4);
 				sr_spew("Expanded sample: 0x%.2hhx%.2hhx%.2hhx%.2hhx ",
 					devc->sample[3], devc->sample[2],
 					devc->sample[1], devc->sample[0]);
diff --git a/src/hardware/openbench-logic-sniffer/protocol.h b/src/hardware/openbench-logic-sniffer/protocol.h
index 612b069f..01a38213 100644
--- a/src/hardware/openbench-logic-sniffer/protocol.h
+++ b/src/hardware/openbench-logic-sniffer/protocol.h
@@ -123,7 +123,6 @@ struct dev_context {
 
 	unsigned int rle_count;
 	unsigned char sample[4];
-	unsigned char tmp_sample[4];
 	unsigned char *raw_sample_buf;
 };