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mtd: Initialize ->fail_addr early in mtd_erase() 

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.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Reviewed-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Boris Brezillon 2018-02-12 22:03:07 +01:00
parent f0a37a8db8
commit c585da9f5f
1 changed files with 2 additions and 1 deletions
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3
drivers/mtd/mtdcore.c
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@ -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);