diff options
Diffstat (limited to 'drivers/firmware/arm_ffa/driver.c')
| -rw-r--r-- | drivers/firmware/arm_ffa/driver.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/drivers/firmware/arm_ffa/driver.c b/drivers/firmware/arm_ffa/driver.c index 14f900047ac0..ccccecae615f 100644 --- a/drivers/firmware/arm_ffa/driver.c +++ b/drivers/firmware/arm_ffa/driver.c @@ -398,11 +398,15 @@ static int ffa_mem_first_frag(u32 func_id, phys_addr_t buf, u32 buf_sz, if (ret.a0 == FFA_ERROR) return ffa_to_linux_errno((int)ret.a2); - if (ret.a0 != FFA_SUCCESS) + if (ret.a0 == FFA_SUCCESS) { + if (handle) + *handle = PACK_HANDLE(ret.a2, ret.a3); + } else if (ret.a0 == FFA_MEM_FRAG_RX) { + if (handle) + *handle = PACK_HANDLE(ret.a1, ret.a2); + } else { return -EOPNOTSUPP; - - if (handle) - *handle = PACK_HANDLE(ret.a2, ret.a3); + } return frag_len; } @@ -426,10 +430,12 @@ static int ffa_mem_next_frag(u64 handle, u32 frag_len) if (ret.a0 == FFA_ERROR) return ffa_to_linux_errno((int)ret.a2); - if (ret.a0 != FFA_MEM_FRAG_RX) - return -EOPNOTSUPP; + if (ret.a0 == FFA_MEM_FRAG_RX) + return ret.a3; + else if (ret.a0 == FFA_SUCCESS) + return 0; - return ret.a3; + return -EOPNOTSUPP; } static int |