diff options
| author | Bin Meng <bin.meng@windriver.com> | 2020-12-23 10:00:24 +0800 |
|---|---|---|
| committer | Alistair Francis <alistair.francis@wdc.com> | 2021-01-16 10:57:21 -0800 |
| commit | 1695854b371cdd4d17835a406675245a8dfe6cff (patch) | |
| tree | 9e706dc05e6c6435e5bca49de0eb0177de5e2109 /hw/block/m25p80.c | |
| parent | 825a215c003cd028e26c7d19aa5049d957345f43 (diff) | |
hw/block: m25p80: Don't write to flash if write is disabled
When write is disabled, the write to flash should be avoided
in flash_write8().
Fixes: 82a2499011a7 ("m25p80: Initial implementation of SPI flash device")
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Message-id: 1608688825-81519-1-git-send-email-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Diffstat (limited to 'hw/block/m25p80.c')
| -rw-r--r-- | hw/block/m25p80.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/hw/block/m25p80.c b/hw/block/m25p80.c index 1b3f2405a1..63278cbda5 100644 --- a/hw/block/m25p80.c +++ b/hw/block/m25p80.c @@ -601,6 +601,7 @@ void flash_write8(Flash *s, uint32_t addr, uint8_t data) if (!s->write_enable) { qemu_log_mask(LOG_GUEST_ERROR, "M25P80: write with write protect!\n"); + return; } if ((prev ^ data) & data) { |