nanohub: driver/st_mag40: Fix hard fault in EVT_APP_START due to evtData == NULL
This commit fixes following hard fault when nanoapp starts (EVT_APP_START):
[ST_MAG40] set state 0
*HARD FAULT*
R00 = 0x00000001 R08 = 0x0000002C
R01 = 0x00000000 R09 = 0x00000000
R02 = 0x20003A4C R10 = 0x200025EC
R03 = 0x20003790 R11 = 0x200028C0
R04 = 0x00000400 R12 = 0xCCCCCCCD
R05 = 0x00000000 R13 = 0x20000710
R06 = 0x00000400 R14 = 0x08011F57
R07 = 0x200028B4 R15 = 0x08011F56
xPSR = 0x21000000 HFSR = 0x00000000
CFSR = 0x00000082 BITS = 0x00000000
TID = 0x0102 TRIG = 0x0003 [MPU]
Basically when nanoapp starts the evtData pointer is NULL, causing the event
handler to crash. Solution is to avoid falling thru next case and call a
comm_tx operation instead. In addition to solving the crash, this method
cleanly reset all s/w registers to default values at startup.
Change-Id: I11259d3215bf07c1e9a4c4d792a7ddf57d6e3aaa
Signed-off-by: Armando Visconti <armando.visconti@st.com>
1 file changed
