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libavb: Handle wrong hashtree_error_mode in avb_append_options()

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Exit with AVB_SLOT_VERIFY_RESULT_ERROR_INVALID_ARGUMENT
when hashtree_error_mode value passed to avb_append_options()
is unknown (not from AvbHashtreeErrorMode enum).

Otherwise, default value is not handled in the
switch(hashtree_error_mode), which causes below compile warning:

lib/libavb/avb_cmdline.c: In function ‘avb_append_options’:
lib/libavb/avb_cmdline.c:354:13: warning: ‘dm_verity_mode’ may be used uninitialized in this function [-Wmaybe-uninitialized]
     new_ret = avb_replace(
     ~~~~~~~~^~~~~~~~~~~~~~
         slot_data->cmdline, "$(ANDROID_VERITY_MODE)", dm_verity_mode);
         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
lib/libavb/avb_cmdline.c:363:8: warning: ‘verity_mode’ may be used uninitialized in this function [-Wmaybe-uninitialized]
   if (!cmdline_append_option(
        ^~~~~~~~~~~~~~~~~~~~~~
           slot_data, "androidboot.veritymode", verity_mode)) {

Signed-off-by: Ievgen Maliarenko <ievgen.maliarenko@globallogic.com>
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Reviewed-by: Igor Opaniuk <igor.opaniuk@linaro.org>
This commit is contained in:
Ievgen Maliarenko 2018-08-14 02:43:03 +02:00 committed by Tom Rini
parent 3b1c0d89b9
commit ecc6f6bea6
1 changed files with 3 additions and 0 deletions
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3
lib/libavb/avb_cmdline.c
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@ -331,6 +331,9 @@ AvbSlotVerifyResult avb_append_options(
verity_mode = "logging";
dm_verity_mode = "ignore_corruption";
break;
default:
ret = AVB_SLOT_VERIFY_RESULT_ERROR_INVALID_ARGUMENT;
goto out;
}
new_ret = avb_replace(
slot_data->cmdline, "$(ANDROID_VERITY_MODE)", dm_verity_mode);