Our hardware has part of the flash mapped in two address ranges. The CONFIG_SYS_MONITOR_BASE is in the upper 'boot' area, whereas the CONFIG_SYS_FLASH_BANKS_LIST has the full flash available at a lower address.
This all works fine until the code in cfi_flash.c:flash_init(), which uses flash_get_info() to find the flash_info_t associated with the monitor and environment. These are not in the probed flash range, so flash_get_info() returns NULL. This is not checked and is passed directly to flash_protect(). Since flash_protect() was not checking for this NULL pointer either, random memory would be clobbered causing the device to lock up. This patch changes flash_protect() to check for the NULL, and the error goes unreported. Mark Tomlinson (1): flash: Check info pointer in flash_protect(). common/flash.c | 10 +++++++--- 1 files changed, 7 insertions(+), 3 deletions(-) NOTICE: This message contains privileged and confidential information intended only for the use of the addressee named above. If you are not the intended recipient of this message you are hereby notified that you must not disseminate, copy or take any action in reliance on it. If you have received this message in error please notify Allied Telesis Labs Ltd immediately. Any views expressed in this message are those of the individual sender, except where the sender has the authority to issue and specifically states them to be the views of Allied Telesis Labs. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
