Merge tag 'mtd/for-4.17' of git://git.infradead.org/linux-mtd

Pull MTD updates from Boris Brezillon:
 "MTD Core:
   - Remove support for asynchronous erase (not implemented by any of
     the existing drivers anyway)
   - Remove Cyrille from the list of SPI NOR and MTD maintainers
   - Fix kernel doc headers
   - Allow users to define the partitions parsers they want to test
     through a DT property (compatible of the partitions subnode)
   - Remove the bfin-async-flash driver (the only architecture using it
     has been removed)
   - Fix pagetest test
   - Add extra checks in mtd_erase()
   - Simplify the MTD partition creation logic and get rid of
     mtd_add_device_partitions()

  MTD Drivers:
   - Add endianness information to the physmap DT binding
   - Add Eon EN29LV400A IDs to JEDEC probe logic
   - Use %*ph where appropriate

  SPI NOR Drivers:
   - Make fsl-quaspi assign different names to MTD devices connected to
     the same QSPI controller
   - Remove an unneeded driver.bus assigned in the fsl-qspi driver

  NAND Core:
   - Prepare arrival of the SPI NAND subsystem by implementing a generic
     (interface-agnostic) layer to ease manipulation of NAND devices
   - Move onenand code base to the drivers/mtd/nand/ dir
   - Rework timing mode selection
   - Provide a generic way for NAND chip drivers to flag a specific
     GET/SET FEATURE operation as supported/unsupported
   - Stop embedding ONFI/JEDEC param page in nand_chip

  NAND Drivers:
   - Rework/cleanup of the mxc driver
   - Various cleanups in the vf610 driver
   - Migrate the fsmc and vf610 to ->exec_op()
   - Get rid of the pxa driver (replaced by marvell_nand)
   - Support ->setup_data_interface() in the GPMI driver
   - Fix probe error path in several drivers
   - Remove support for unused hw_syndrome mode in sunxi_nand
   - Various minor improvements"

* tag 'mtd/for-4.17' of git://git.infradead.org/linux-mtd: (89 commits)
  dt-bindings: fsl-quadspi: Add the example of two SPI NOR
  mtd: fsl-quadspi: Distinguish the mtd device names
  mtd: nand: Fix some function description mismatches in core.c
  mtd: fsl-quadspi: Remove unneeded driver.bus assignment
  mtd: rawnand: marvell: Rename ->ecc_clk into ->core_clk
  mtd: rawnand: s3c2410: enhance the probe function error path
  mtd: rawnand: tango: fix probe function error path
  mtd: rawnand: sh_flctl: fix the probe function error path
  mtd: rawnand: omap2: fix the probe function error path
  mtd: rawnand: mxc: fix probe function error path
  mtd: rawnand: denali: fix probe function error path
  mtd: rawnand: davinci: fix probe function error path
  mtd: rawnand: cafe: fix probe function error path
  mtd: rawnand: brcmnand: fix probe function error path
  mtd: rawnand: sunxi: Stop supporting ECC_HW_SYNDROME mode
  mtd: rawnand: marvell: Fix clock resource by adding a register clock
  mtd: ftl: Use DIV_ROUND_UP()
  mtd: Fix some function description mismatches in mtdcore.c
  mtd: physmap_of: update struct map_info's swap as per map requirement
  dt-bindings: mtd-physmap: Add endianness supports
  ...

1 files changed, 28 insertions, 65 deletions

diff --git a/drivers/mtd/rfd_ftl.c b/drivers/mtd/rfd_ftl.c
index d1cbf26..df27f24 100644
--- a/drivers/mtd/rfd_ftl.c
+++ b/drivers/mtd/rfd_ftl.c
@@ -266,91 +266,54 @@ static int rfd_ftl_readsect(struct mtd_blktrans_dev *dev, u_long sector, char *b
 	return 0;
 }
 
-static void erase_callback(struct erase_info *erase)
-{
-	struct partition *part;
-	u16 magic;
-	int i, rc;
-	size_t retlen;
-
-	part = (struct partition*)erase->priv;
-
-	i = (u32)erase->addr / part->block_size;
-	if (i >= part->total_blocks || part->blocks[i].offset != erase->addr ||
-	    erase->addr > UINT_MAX) {
-		printk(KERN_ERR PREFIX "erase callback for unknown offset %llx "
-				"on '%s'\n", (unsigned long long)erase->addr, part->mbd.mtd->name);
-		return;
-	}
-
-	if (erase->state != MTD_ERASE_DONE) {
-		printk(KERN_WARNING PREFIX "erase failed at 0x%llx on '%s', "
-				"state %d\n", (unsigned long long)erase->addr,
-				part->mbd.mtd->name, erase->state);
-
-		part->blocks[i].state = BLOCK_FAILED;
-		part->blocks[i].free_sectors = 0;
-		part->blocks[i].used_sectors = 0;
-
-		kfree(erase);
-
-		return;
-	}
-
-	magic = cpu_to_le16(RFD_MAGIC);
-
-	part->blocks[i].state = BLOCK_ERASED;
-	part->blocks[i].free_sectors = part->data_sectors_per_block;
-	part->blocks[i].used_sectors = 0;
-	part->blocks[i].erases++;
-
-	rc = mtd_write(part->mbd.mtd, part->blocks[i].offset, sizeof(magic),
-		       &retlen, (u_char *)&magic);
-
-	if (!rc && retlen != sizeof(magic))
-		rc = -EIO;
-
-	if (rc) {
-		printk(KERN_ERR PREFIX "'%s': unable to write RFD "
-				"header at 0x%lx\n",
-				part->mbd.mtd->name,
-				part->blocks[i].offset);
-		part->blocks[i].state = BLOCK_FAILED;
-	}
-	else
-		part->blocks[i].state = BLOCK_OK;
-
-	kfree(erase);
-}
-
 static int erase_block(struct partition *part, int block)
 {
 	struct erase_info *erase;
-	int rc = -ENOMEM;
+	int rc;
 
 	erase = kmalloc(sizeof(struct erase_info), GFP_KERNEL);
 	if (!erase)
-		goto err;
+		return -ENOMEM;
 
-	erase->mtd = part->mbd.mtd;
-	erase->callback = erase_callback;
 	erase->addr = part->blocks[block].offset;
 	erase->len = part->block_size;
-	erase->priv = (u_long)part;
 
 	part->blocks[block].state = BLOCK_ERASING;
 	part->blocks[block].free_sectors = 0;
 
 	rc = mtd_erase(part->mbd.mtd, erase);
-
 	if (rc) {
 		printk(KERN_ERR PREFIX "erase of region %llx,%llx on '%s' "
 				"failed\n", (unsigned long long)erase->addr,
 				(unsigned long long)erase->len, part->mbd.mtd->name);
-		kfree(erase);
+		part->blocks[block].state = BLOCK_FAILED;
+		part->blocks[block].free_sectors = 0;
+		part->blocks[block].used_sectors = 0;
+	} else {
+		u16 magic = cpu_to_le16(RFD_MAGIC);
+		size_t retlen;
+
+		part->blocks[block].state = BLOCK_ERASED;
+		part->blocks[block].free_sectors = part->data_sectors_per_block;
+		part->blocks[block].used_sectors = 0;
+		part->blocks[block].erases++;
+
+		rc = mtd_write(part->mbd.mtd, part->blocks[block].offset,
+			       sizeof(magic), &retlen, (u_char *)&magic);
+		if (!rc && retlen != sizeof(magic))
+			rc = -EIO;
+
+		if (rc) {
+			pr_err(PREFIX "'%s': unable to write RFD header at 0x%lx\n",
+			       part->mbd.mtd->name, part->blocks[block].offset);
+			part->blocks[block].state = BLOCK_FAILED;
+		} else {
+			part->blocks[block].state = BLOCK_OK;
+		}
 	}
 
-err:
+	kfree(erase);
+
 	return rc;
 }