X-Git-Url: https://git.ao2.it/libam7xxx.git/blobdiff_plain/16c2c3c2f38338d5b3d71c6376bd16ae62b6e72e..3e874361f193d7ce9dec3971fd1d4923fea1a9a5:/src/am7xxx.c

diff --git a/src/am7xxx.c b/src/am7xxx.c
index 74ae689..512cf6f 100644
--- a/src/am7xxx.c
+++ b/src/am7xxx.c
@@ -341,7 +341,7 @@ static inline unsigned int in_80chars(unsigned int i)
 {
 	/* The 3 below is the length of "xx " where xx is the hex string
 	 * representation of a byte */
-	return ((i+1) % (80/3));
+	return ((i + 1) % (80 / 3));
 }
 
 static void trace_dump_buffer(am7xxx_context *ctx, const char *message,
@@ -800,7 +800,7 @@ static int open_device(am7xxx_context *ctx,
 	}
 
 	if (current_configuration != (*dev)->desc->configuration) {
-		debug(ctx, "libusb configuration changed (expected: %hhu, current: %hhu\n",
+		debug(ctx, "libusb configuration changed (expected: %hhu, current: %d)\n",
 		      (*dev)->desc->configuration, current_configuration);
 		ret = -EINVAL;
 		goto out_libusb_release_interface;
@@ -1093,8 +1093,7 @@ AM7XXX_PUBLIC int am7xxx_init(am7xxx_context **ctx)
 	*ctx = malloc(sizeof(**ctx));
 	if (*ctx == NULL) {
 		fatal("cannot allocate the context (%s)\n", strerror(errno));
-		ret = -ENOMEM;
-		goto out;
+		return -ENOMEM;
 	}
 	memset(*ctx, 0, sizeof(**ctx));
 
@@ -1214,10 +1213,9 @@ AM7XXX_PUBLIC int am7xxx_get_device_info(am7xxx_device *dev,
 	int ret;
 	struct am7xxx_header h;
 
-	if (dev->device_info) {
-		memcpy(device_info, dev->device_info, sizeof(*device_info));
-		return 0;
-	}
+	/* if there is a cached copy of the device info, just return that */
+	if (dev->device_info)
+		goto return_value;
 
 	ret = send_command(dev, AM7XXX_PACKET_TYPE_DEVINFO);
 	if (ret < 0)
@@ -1251,6 +1249,9 @@ AM7XXX_PUBLIC int am7xxx_get_device_info(am7xxx_device *dev,
 	dev->device_info->unknown1 = h.header_data.devinfo.unknown1;
 #endif
 
+return_value:
+	if (device_info)
+		memcpy(device_info, dev->device_info, sizeof(*device_info));
 	return 0;
 }
 
@@ -1261,7 +1262,6 @@ AM7XXX_PUBLIC int am7xxx_calc_scaled_image_dimensions(am7xxx_device *dev,
 					unsigned int *scaled_width,
 					unsigned int *scaled_height)
 {
-
 	am7xxx_device_info device_info;
 	float width_ratio;
 	float height_ratio;