diff --git a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
index 95a24db73bf692..ac4a770250bad1 100644
--- a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
+++ b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
@@ -1499,7 +1499,7 @@ static struct dma_chan *dw_axi_dma_of_xlate(struct of_phandle_args *dma_spec,
 {
 	struct dw_axi_dma *dw = ofdma->of_dma_data;
 	struct axi_dma_chan *chan;
-	uint32_t chan_flags_all;
+	uint32_t chan_flags_all = 0;
 	uint32_t busy_channels;
 	struct dma_chan *dchan;
 	dma_cap_mask_t mask;
diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c
index f0154b17458ec0..2c4826ede21b8d 100644
--- a/drivers/gpu/drm/vc4/vc4_plane.c
+++ b/drivers/gpu/drm/vc4/vc4_plane.c
@@ -2817,7 +2817,7 @@ int vc4_plane_create_additional_planes(struct drm_device *drm)
 	struct drm_plane *cursor_plane;
 	struct drm_crtc *crtc;
 	unsigned int i;
-	struct drm_crtc *txp_crtc;
+	struct drm_crtc *txp_crtc = NULL;
 	uint32_t non_txp_crtc_mask;
 
 	drm_for_each_crtc(crtc, drm) {
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.h
index b2be07d11c67a3..d8c9d6bee80982 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.h
@@ -310,7 +310,7 @@ struct eventmsgs_ext {
 	u8	command;
 	u8	len;
 	u8	maxgetsize;
-	u8	mask[1];
+	u8	mask[];
 };
 
 typedef int (*brcmf_fweh_handler_t)(struct brcmf_if *ifp,
diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller/pcie-brcmstb.c
index 095795a5bb0aee..b182ab75a8fc50 100644
--- a/drivers/pci/controller/pcie-brcmstb.c
+++ b/drivers/pci/controller/pcie-brcmstb.c
@@ -1575,7 +1575,7 @@ static void brcm_config_clkreq(struct brcm_pcie *pcie)
 {
 	static const char err_msg[] = "invalid 'brcm,clkreq-mode' DT string\n";
 	const char *mode = "default";
-	u32 clkreq_cntl;
+	u32 clkreq_cntl = 0;
 	int ret, tmp;
 
 	ret = of_property_read_string(pcie->np, "brcm,clkreq-mode", &mode);
diff --git a/include/linux/pio_rp1.h b/include/linux/pio_rp1.h
index f262fdd9c8f1c3..cbec0595496234 100644
--- a/include/linux/pio_rp1.h
+++ b/include/linux/pio_rp1.h
@@ -41,7 +41,7 @@
 
 #define NUM_PIO_STATE_MACHINES		4
 #define PIO_INSTRUCTION_COUNT		32
-#define PIO_ORIGIN_ANY			((uint)(~0))
+#define PIO_ORIGIN_ANY			((uint16_t)(~0))
 #define GPIOS_MASK			((1 << RP1_PIO_GPIO_COUNT) - 1)
 
 #define PICO_NO_HARDWARE		0
diff --git a/sound/drivers/Kconfig b/sound/drivers/Kconfig
index d6fd0c6be56a56..51b17967f206a9 100644
--- a/sound/drivers/Kconfig
+++ b/sound/drivers/Kconfig
@@ -265,8 +265,9 @@ config SND_AC97_POWER_SAVE_DEFAULT
 
 config SND_PIMIDI
 	tristate "Pimidi driver"
-	depends on SND_SEQUENCER && CRC8
+	depends on SND_SEQUENCER
 	select SND_RAWMIDI
+	select CRC8
 	help
 	  Say Y here to include support for Blokas Pimidi.
 
@@ -275,7 +276,8 @@ config SND_PIMIDI
 
 config SND_PISOUND_MICRO
 	tristate "Pisound Micro driver"
-	depends on SND_SEQUENCER && CRC8
+	depends on SND_SEQUENCER
+	select CRC8
 	help
 	  Say Y here to include support for Blokas Pisound Micro.
 
diff --git a/sound/drivers/upisnd/upisnd_codec.c b/sound/drivers/upisnd/upisnd_codec.c
index 9d0fe01e9a7d5e..1ca77255504859 100644
--- a/sound/drivers/upisnd/upisnd_codec.c
+++ b/sound/drivers/upisnd/upisnd_codec.c
@@ -736,7 +736,7 @@ static int adau1961_add_routes(struct snd_soc_component *component)
 {
 	struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
 	struct adau *adau = snd_soc_component_get_drvdata(component);
-	int ret;
+	int ret = 0;
 
 	if (adau->clk_src != ADAU1961_CLK_SRC_MCLK)
 		ret = snd_soc_dapm_add_routes(dapm, &adau1961_dapm_pll_route, 1);
diff --git a/sound/soc/bcm/hifiberry_studio_dac8x.c b/sound/soc/bcm/hifiberry_studio_dac8x.c
index 75843084a7c973..a4553c2d2432ea 100644
--- a/sound/soc/bcm/hifiberry_studio_dac8x.c
+++ b/sound/soc/bcm/hifiberry_studio_dac8x.c
@@ -767,7 +767,7 @@ static int hb_uni_read_card_info(struct platform_device *pdev)
 			return -EINVAL;
 		}
 	} else {
-		if ((priv->card_info.card_clk_options == 0x02)) {
+		if (priv->card_info.card_clk_options == 0x02) {
 			dev_err(&pdev->dev,
 				"Card cannot run as i2s clock consumer\n");
 			return -EINVAL;