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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-10-10 22:30:33 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-10-10 22:30:33 +0400 |
| commit | b291a22952e74bb2fcf9c57c6d8bae52a4f197e2 (patch) | |
| tree | d216a0e6e29c16e4dc18d0c637799b22ad9f2c61 /drivers | |
| parent | 0e7a3ed04f0cd4311096d691888f88569310ee6c (diff) | |
| parent | 2b468ef0e7959b703626b64c4d264ef822c9267a (diff) | |
| download | linux-b291a22952e74bb2fcf9c57c6d8bae52a4f197e2.tar.xz | |
Merge tag 'for-linus-20131008' of git://git.infradead.org/linux-mtd
Pull MTD fixes from Brian Norris:
- fix a small memory leak in some new ONFI code
- account for additional odd variations of Micron SPI flash
Acked by David Woodhouse.
* tag 'for-linus-20131008' of git://git.infradead.org/linux-mtd:
mtd: m25p80: Fix 4 byte addressing mode for Micron devices.
mtd: nand: fix memory leak in ONFI extended parameter page
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mtd/devices/m25p80.c | 17 | ||||
| -rw-r--r-- | drivers/mtd/nand/nand_base.c | 8 |
2 files changed, 18 insertions, 7 deletions
diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index 26b14f9fcac6..6bc9618af094 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -168,12 +168,25 @@ static inline int write_disable(struct m25p *flash) */ static inline int set_4byte(struct m25p *flash, u32 jedec_id, int enable) { + int status; + bool need_wren = false; + switch (JEDEC_MFR(jedec_id)) { - case CFI_MFR_MACRONIX: case CFI_MFR_ST: /* Micron, actually */ + /* Some Micron need WREN command; all will accept it */ + need_wren = true; + case CFI_MFR_MACRONIX: case 0xEF /* winbond */: + if (need_wren) + write_enable(flash); + flash->command[0] = enable ? OPCODE_EN4B : OPCODE_EX4B; - return spi_write(flash->spi, flash->command, 1); + status = spi_write(flash->spi, flash->command, 1); + + if (need_wren) + write_disable(flash); + + return status; default: /* Spansion style */ flash->command[0] = OPCODE_BRWR; diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 7ed4841327f2..d340b2f198c6 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2869,10 +2869,8 @@ static int nand_flash_detect_ext_param_page(struct mtd_info *mtd, len = le16_to_cpu(p->ext_param_page_length) * 16; ep = kmalloc(len, GFP_KERNEL); - if (!ep) { - ret = -ENOMEM; - goto ext_out; - } + if (!ep) + return -ENOMEM; /* Send our own NAND_CMD_PARAM. */ chip->cmdfunc(mtd, NAND_CMD_PARAM, 0, -1); @@ -2920,7 +2918,7 @@ static int nand_flash_detect_ext_param_page(struct mtd_info *mtd, } pr_info("ONFI extended param page detected.\n"); - return 0; + ret = 0; ext_out: kfree(ep); |