The erase command normally makes sure that the selected area is erased,
therefore align the parameters to eraseblock boundaries.
Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
drivers/nor/m25p80.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/nor/m25p80.c b/drivers/nor/m25p80.c
index 0f3bcd1..7ff4546 100644
--- a/drivers/nor/m25p80.c
+++ b/drivers/nor/m25p80.c
@@ -205,8 +205,9 @@ static ssize_t m25p80_erase(struct cdev *cdev, size_t count, loff_t offset)
if (offset + count > flash->size)
return -EINVAL;
- addr = offset;
- len = count;
+ /* Align start and len to erase blocks */
+ addr = offset & ~(flash->erasesize - 1);
+ len = ALIGN(offset + count, flash->erasesize) - addr;
/* whole-chip erase? */
if (len == flash->size) {
--
1.7.10.4
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