diff --git a/drivers/audio/sb16/mixer.c b/drivers/audio/sb16/mixer.c
index 770af03ea..f276b1e87 100644
--- a/drivers/audio/sb16/mixer.c
+++ b/drivers/audio/sb16/mixer.c
@@ -172,8 +172,8 @@ PRIVATE int get_set_input(struct inout_ctrl *input, int flag, int channel) {
 		mixer_set(input_cmd, mask);
 	} else {	/* Get input */
 		if (shift > 0) {
-			input->left = ((mask >> (shift+1)) & 1 == 1 ? ON : OFF);
-			input->right = ((mask >> shift) & 1 == 1 ? ON : OFF);
+			input->left = (((mask >> (shift+1)) & 1) == 1 ? ON : OFF);
+			input->right = (((mask >> shift) & 1) == 1 ? ON : OFF);
 		} else {
 			input->left = ((mask & 1) == 1 ? ON : OFF);
 		}
@@ -220,8 +220,8 @@ PRIVATE int get_set_output(struct inout_ctrl *output, int flag) {
 		mixer_set(MIXER_OUTPUT_CTRL, mask);
 	} else {    /* Get input */
 		if (shift > 0) {
-			output->left = ((mask >> (shift+1)) & 1 == 1 ? ON : OFF);
-			output->right = ((mask >> shift) & 1 == 1 ? ON : OFF);
+			output->left = (((mask >> (shift+1)) & 1) == 1 ? ON : OFF);
+			output->right = (((mask >> shift) & 1) == 1 ? ON : OFF);
 		} else {
 			output->left = ((mask & 1) == 1 ? ON : OFF);
 		}
@@ -250,4 +250,4 @@ PUBLIC int mixer_get(int reg) {
 	sb16_outb(MIXER_REG, reg);
 	for(i = 0; i < 100; i++);
 	return sb16_inb(MIXER_DATA) & 0xff;
-}  
\ No newline at end of file
+}  
diff --git a/drivers/fxp/fxp.c b/drivers/fxp/fxp.c
index 0f8ca0e60..e806bda21 100644
--- a/drivers/fxp/fxp.c
+++ b/drivers/fxp/fxp.c
@@ -1482,7 +1482,7 @@ int vectored;
 		goto suspend;
 	}
 
-	if (!rfd_status & RFDS_OK)
+	if (!(rfd_status & RFDS_OK))
 	{
 		/* Not OK? What happened? */
 		assert(0);
@@ -1662,7 +1662,7 @@ int from_int;
 		goto suspend;
 	}
 
-	if (!rfd_status & RFDS_OK)
+	if (!(rfd_status & RFDS_OK))
 	{
 		/* Not OK? What happened? */
 		assert(0);