[MTD] Correct partition failed erase address
If an erase operation fails, the address at which the
failure occurred is returned by the driver. The MTD
partition must adjust this address (by subtracting the
partition offset) before returning to the caller.
This was not happening, which caused JFFS2 to mark
the wrong block bad!
Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index 01e4aff..1af9890 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -200,6 +200,11 @@
return -EINVAL;
instr->addr += part->offset;
ret = part->master->erase(part->master, instr);
+ if (ret) {
+ if (instr->fail_addr != 0xffffffff)
+ instr->fail_addr -= part->offset;
+ instr->addr -= part->offset;
+ }
return ret;
}
@@ -560,4 +565,3 @@
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Nicolas Pitre <nico@cam.org>");
MODULE_DESCRIPTION("Generic support for partitioning of MTD devices");
-