1 files changed, 59 insertions, 0 deletions
diff --git a/target/linux/generic/patches-3.14/048-mtd-bcm47xxpart-backports-from-3.16.patch b/target/linux/generic/patches-3.14/048-mtd-bcm47xxpart-backports-from-3.16.patch
new file mode 100644
index 0000000..540db6f
--- /dev/null
+++ b/target/linux/generic/patches-3.14/048-mtd-bcm47xxpart-backports-from-3.16.patch
@@ -0,0 +1,59 @@
+--- a/drivers/mtd/Kconfig
++++ b/drivers/mtd/Kconfig
+@@ -150,7 +150,7 @@ config MTD_BCM63XX_PARTS
+ 
+ config MTD_BCM47XX_PARTS
+ 	tristate "BCM47XX partitioning support"
+-	depends on BCM47XX
++	depends on BCM47XX || ARCH_BCM_5301X
+ 	help
+ 	  This provides partitions parser for devices based on BCM47xx
+ 	  boards.
+--- a/drivers/mtd/bcm47xxpart.c
++++ b/drivers/mtd/bcm47xxpart.c
+@@ -14,7 +14,6 @@
+ #include <linux/slab.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/partitions.h>
+-#include <bcm47xx_nvram.h>
+ 
+ /* 10 parts were found on sflash on Netgear WNDR4500 */
+ #define BCM47XXPART_MAX_PARTS		12
+@@ -30,6 +29,7 @@
+ #define BOARD_DATA_MAGIC2		0xBD0D0BBD
+ #define CFE_MAGIC			0x43464531	/* 1EFC */
+ #define FACTORY_MAGIC			0x59544346	/* FCTY */
++#define NVRAM_HEADER			0x48534C46	/* FLSH */
+ #define POT_MAGIC1			0x54544f50	/* POTT */
+ #define POT_MAGIC2			0x504f		/* OP */
+ #define ML_MAGIC1			0x39685a42
+@@ -91,7 +91,7 @@ static int bcm47xxpart_parse(struct mtd_
+ 		if (offset >= 0x2000000)
+ 			break;
+ 
+-		if (curr_part > BCM47XXPART_MAX_PARTS) {
++		if (curr_part >= BCM47XXPART_MAX_PARTS) {
+ 			pr_warn("Reached maximum number of partitions, scanning stopped!\n");
+ 			break;
+ 		}
+@@ -147,6 +147,11 @@ static int bcm47xxpart_parse(struct mtd_
+ 
+ 		/* TRX */
+ 		if (buf[0x000 / 4] == TRX_MAGIC) {
++			if (BCM47XXPART_MAX_PARTS - curr_part < 4) {
++				pr_warn("Not enough partitions left to register trx, scanning stopped!\n");
++				break;
++			}
++
+ 			trx = (struct trx_header *)buf;
+ 
+ 			trx_part = curr_part;
+@@ -212,7 +217,7 @@ static int bcm47xxpart_parse(struct mtd_
+ 
+ 	/* Look for NVRAM at the end of the last block. */
+ 	for (i = 0; i < ARRAY_SIZE(possible_nvram_sizes); i++) {
+-		if (curr_part > BCM47XXPART_MAX_PARTS) {
++		if (curr_part >= BCM47XXPART_MAX_PARTS) {
+ 			pr_warn("Reached maximum number of partitions, scanning stopped!\n");
+ 			break;
+ 		}