X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fhardware%2Fasix-sigma%2Fasix-sigma.c;h=0a2ec990ac38d47467715d015b9cab1d3c09366d;hb=41812aca436805b0614f2a8f31cf2f8ce494aea0;hp=957b1d1ac7c7a2098a979be701006fdf392dd80f;hpb=1a46cc62e2b528bcaeb1f8dc0c952a81b3bcba5c;p=libsigrok.git

diff --git a/src/hardware/asix-sigma/asix-sigma.c b/src/hardware/asix-sigma/asix-sigma.c
index 957b1d1a..0a2ec990 100644
--- a/src/hardware/asix-sigma/asix-sigma.c
+++ b/src/hardware/asix-sigma/asix-sigma.c
@@ -130,13 +130,23 @@ static int sigma_write(void *buf, size_t size, struct dev_context *devc)
 	return ret;
 }
 
+/*
+ * NOTE: We chose the buffer size to be large enough to hold any write to the
+ * device. We still print a message just in case.
+ */
 static int sigma_write_register(uint8_t reg, uint8_t *data, size_t len,
 				struct dev_context *devc)
 {
 	size_t i;
-	uint8_t buf[len + 2];
+	uint8_t buf[80];
 	int idx = 0;
 
+	if ((len + 2) > sizeof(buf)) {
+		sr_err("Attempted to write %zu bytes, but buffer is too small.",
+		       len + 2);
+		return SR_ERR_BUG;
+	}
+
 	buf[idx++] = REG_ADDR_LOW | (reg & 0xf);
 	buf[idx++] = REG_ADDR_HIGH | (reg >> 4);
 
@@ -335,7 +345,7 @@ static GSList *scan(struct sr_dev_driver *di, GSList *options)
 
 	(void)options;
 
-	drvc = di->priv;
+	drvc = di->context;
 
 	devices = NULL;
 
@@ -401,7 +411,7 @@ free:
 
 static GSList *dev_list(const struct sr_dev_driver *di)
 {
-	return ((struct drv_context *)(di->priv))->instances;
+	return ((struct drv_context *)(di->context))->instances;
 }
 
 /*
@@ -1544,5 +1554,5 @@ SR_PRIV struct sr_dev_driver asix_sigma_driver_info = {
 	.dev_close = dev_close,
 	.dev_acquisition_start = dev_acquisition_start,
 	.dev_acquisition_stop = dev_acquisition_stop,
-	.priv = NULL,
+	.context = NULL,
 };