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init: prevent persist.sys.usb.config initalized as none,adb 

Prevent appending ",adb" to persist.sys.usb.config if "none" is
explicitly defined in default prop.

Bug: 150130503
Test: persist.sys.usb.config initalized correctly
Change-Id: I3b5de6fd102e252019e843f39f0875f5aaea7486
This commit is contained in:
Howard Yen 2020-02-26 21:36:59 +08:00
parent 58d8065034
commit 446c4fbed0
1 changed files with 3 additions and 1 deletions
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4
init/property_service.cpp
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@ -745,7 +745,9 @@ static bool load_properties_from_file(const char* filename, const char* filter,
static void update_sys_usb_config() {
bool is_debuggable = android::base::GetBoolProperty("ro.debuggable", false);
std::string config = android::base::GetProperty("persist.sys.usb.config", "");
if (config.empty()) {
// b/150130503, add (config == "none") condition here to prevent appending
// ",adb" if "none" is explicitly defined in default prop.
if (config.empty() || config == "none") {
InitPropertySet("persist.sys.usb.config", is_debuggable ? "adb" : "none");
} else if (is_debuggable && config.find("adb") == std::string::npos &&
config.length() + 4 < PROP_VALUE_MAX) {