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flash: at91samd: fix use of is_erased in check 

is_erased can be one of -1, 0, or 1 so it must not be checked like a
boolean value.  In this case we want to erase a page unless we know it's
already erased so we just check for is_erased != 1.

Thanks to Jim Paris for pointing this out on another driver.

Change-Id: I4591186228153b64e5a9608a2aac18745e578d4a
Signed-off-by: Andrey Yurovsky <yurovsky@gmail.com>
Reviewed-on: http://openocd.zylin.com/2368
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
__archive__
Andrey Yurovsky 2014-10-30 11:56:08 -07:00 committed by Spencer Oliver
parent 921eb4213a
commit 08607aefc0
1 changed files with 1 additions and 1 deletions
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2
src/flash/nor/at91samd.c
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@ -590,7 +590,7 @@ static int samd_erase(struct flash_bank *bank, int first, int last)
return ERROR_FLASH_OPERATION_FAILED;
}
if (!bank->sectors[s].is_erased) {
if (bank->sectors[s].is_erased != 1) {
/* For each row in that sector */
for (int r = s * rows_in_sector; r < (s + 1) * rows_in_sector; r++) {
res = samd_erase_row(bank->target, r * chip->page_size * 4);