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Commit 76c3ace8 authored by Andre Eisenbach's avatar Andre Eisenbach Committed by Matthew Xie
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LE: Fix GKI exception for 0 length values 

When a remote device responds to a read request with a 0 length value, a
GKI exception will occur. This patch checks for 0 length values to avoid
the exception and return the correct status to the application
requesting the read.

Change-Id: Idce61c3d2be7072dafe429ab978763b0ee61aed2
parent e2597adb

system/btif/src/btif_gatt_client.c

+2 −0
Original line number Diff line number Diff line
@@ -174,6 +174,7 @@ static void btapp_gattc_req_data(UINT16 event, char *p_dest, char *p_src) 


                    // Allocate buffer for att value if necessary

                    if (get_uuid16(&p_src_data->read.descr_type) != GATT_UUID_CHAR_AGG_FORMAT

                      && p_src_data->read.p_value->unformat.len > 0

                      && p_src_data->read.p_value->unformat.p_value != NULL)

                    {

                        p_dest_data->read.p_value->unformat.p_value =
@@ -210,6 +211,7 @@ static void btapp_gattc_free_req_data(UINT16 event, tBTA_GATTC *p_data) 
            if (p_data != NULL && p_data->read.p_value != NULL)

            {

                if (get_uuid16 (&p_data->read.descr_type) != GATT_UUID_CHAR_AGG_FORMAT

                  && p_data->read.p_value->unformat.len > 0

                  && p_data->read.p_value->unformat.p_value != NULL)

                {

                    GKI_freebuf(p_data->read.p_value->unformat.p_value);