Merge tag 'v4.14.164' into 4.14-2.3.x-imx

This is the 4.14.164 stable release

Conflicts:
	arch/arm/Kconfig.debug
	arch/arm/boot/dts/imx7s.dtsi
	arch/arm/mach-imx/cpuidle-imx6q.c
	arch/arm/mach-imx/cpuidle-imx6sx.c
	arch/arm64/kernel/cpu_errata.c
	arch/arm64/kvm/hyp/tlb.c
	drivers/crypto/caam/caamalg.c
	drivers/crypto/mxs-dcp.c
	drivers/dma/imx-sdma.c
	drivers/gpio/gpio-vf610.c
	drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
	drivers/input/keyboard/imx_keypad.c
	drivers/input/keyboard/snvs_pwrkey.c
	drivers/mmc/core/block.c
	drivers/mmc/core/queue.h
	drivers/mmc/host/sdhci-esdhc-imx.c
	drivers/net/can/flexcan.c
	drivers/net/can/rx-offload.c
	drivers/net/ethernet/freescale/fec_main.c
	drivers/net/wireless/ath/ath10k/pci.c
	drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
	drivers/pci/dwc/pci-imx6.c
	drivers/spi/spi-fsl-lpspi.c
	drivers/usb/dwc3/gadget.c
	include/net/tcp.h
	sound/soc/fsl/Kconfig
	sound/soc/fsl/fsl_esai.c

1 files changed, 22 insertions, 10 deletions

diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index 635886e4835c..08b171731664 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -407,10 +407,17 @@ static int nvmem_setup_compat(struct nvmem_device *nvmem,
 	if (!config->base_dev)
 		return -EINVAL;
 
-	if (nvmem->read_only)
-		nvmem->eeprom = bin_attr_ro_root_nvmem;
-	else
-		nvmem->eeprom = bin_attr_rw_root_nvmem;
+	if (nvmem->read_only) {
+		if (config->root_only)
+			nvmem->eeprom = bin_attr_ro_root_nvmem;
+		else
+			nvmem->eeprom = bin_attr_ro_nvmem;
+	} else {
+		if (config->root_only)
+			nvmem->eeprom = bin_attr_rw_root_nvmem;
+		else
+			nvmem->eeprom = bin_attr_rw_nvmem;
+	}
 	nvmem->eeprom.attr.name = "eeprom";
 	nvmem->eeprom.size = nvmem->size;
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
@@ -610,7 +617,7 @@ static struct nvmem_device *nvmem_find(const char *name)
 	d = bus_find_device(&nvmem_bus_type, NULL, (void *)name, nvmem_match);
 
 	if (!d)
-		return NULL;
+		return ERR_PTR(-ENOENT);
 
 	return to_nvmem_device(d);
 }
@@ -954,7 +961,7 @@ static inline void nvmem_shift_read_buffer_in_place(struct nvmem_cell *cell,
 						    void *buf)
 {
 	u8 *p, *b;
-	int i, bit_offset = cell->bit_offset;
+	int i, extra, bit_offset = cell->bit_offset;
 
 	p = b = buf;
 	if (bit_offset) {
@@ -969,11 +976,16 @@ static inline void nvmem_shift_read_buffer_in_place(struct nvmem_cell *cell,
 			p = b;
 			*b++ >>= bit_offset;
 		}
-
-		/* result fits in less bytes */
-		if (cell->bytes != DIV_ROUND_UP(cell->nbits, BITS_PER_BYTE))
-			*p-- = 0;
+	} else {
+		/* point to the msb */
+		p += cell->bytes - 1;
 	}
+
+	/* result fits in less bytes */
+	extra = cell->bytes - DIV_ROUND_UP(cell->nbits, BITS_PER_BYTE);
+	while (--extra >= 0)
+		*p-- = 0;
+
 	/* clear msb bits if any leftover in the last byte */
 	*p &= GENMASK((cell->nbits%BITS_PER_BYTE) - 1, 0);
 }