Thread (16 messages) 16 messages, 4 authors, 2018-03-18

Re: [PATCH 1/5] mtd: Initialize ->fail_addr early in mtd_erase()

From: Boris Brezillon <hidden>
Date: 2018-03-18 21:22:45
Also in: netdev

On Mon, 12 Feb 2018 22:03:07 +0100
Boris Brezillon [off-list ref] wrote:
mtd_erase() can return an error before ->fail_addr is initialized to
MTD_FAIL_ADDR_UNKNOWN. Move this initialization at the very beginning
of the function.
Applied the patchset after addressing Miquel's comments.
quoted hunk ↗ jump to hunk
Signed-off-by: Boris Brezillon <redacted>
---
 drivers/mtd/mtdcore.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index a1c94526fb88..c87859ff338b 100644
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -953,6 +953,8 @@ EXPORT_SYMBOL_GPL(__put_mtd_device);
  */
 int mtd_erase(struct mtd_info *mtd, struct erase_info *instr)
 {
+	instr->fail_addr = MTD_FAIL_ADDR_UNKNOWN;
+
 	if (!mtd->erasesize || !mtd->_erase)
 		return -ENOTSUPP;
 
@@ -961,7 +963,6 @@ int mtd_erase(struct mtd_info *mtd, struct erase_info *instr)
 	if (!(mtd->flags & MTD_WRITEABLE))
 		return -EROFS;
 
-	instr->fail_addr = MTD_FAIL_ADDR_UNKNOWN;
 	if (!instr->len) {
 		instr->state = MTD_ERASE_DONE;
 		mtd_erase_callback(instr);


-- 
Boris Brezillon, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com
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