From: Tom Rix trix@redhat.com
[ Upstream commit 34331739e19fd6a293d488add28832ad49c9fc54 ]
Earlier successes leave 'ret' in a non error state, so these errors are not reported. Set ret to -EINVAL before going to the error handler.
This addresses two issues reported by smatch: drivers/fpga/machxo2-spi.c:229 machxo2_write_init() warn: missing error code 'ret'
drivers/fpga/machxo2-spi.c:316 machxo2_write_complete() warn: missing error code 'ret'
[mdf@kernel.org: Reworded commit message] Fixes: 88fb3a002330 ("fpga: lattice machxo2: Add Lattice MachXO2 support") Reported-by: Dan Carpenter dan.carpenter@oracle.com Signed-off-by: Tom Rix trix@redhat.com Signed-off-by: Moritz Fischer mdf@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/fpga/machxo2-spi.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/fpga/machxo2-spi.c b/drivers/fpga/machxo2-spi.c index 4d8a87641587..2fd097c3994b 100644 --- a/drivers/fpga/machxo2-spi.c +++ b/drivers/fpga/machxo2-spi.c @@ -223,8 +223,10 @@ static int machxo2_write_init(struct fpga_manager *mgr, goto fail;
get_status(spi, &status); - if (test_bit(FAIL, &status)) + if (test_bit(FAIL, &status)) { + ret = -EINVAL; goto fail; + } dump_status_reg(&status);
spi_message_init(&msg); @@ -310,6 +312,7 @@ static int machxo2_write_complete(struct fpga_manager *mgr, dump_status_reg(&status); if (!test_bit(DONE, &status)) { machxo2_cleanup(mgr); + ret = -EINVAL; goto fail; }