diff options
| author | Tom Rix <trix@redhat.com> | 2021-08-10 09:40:36 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-09-30 10:09:23 +0200 |
| commit | 0ebc3e688f54a71d680ae436ed6879ebbba4f437 (patch) | |
| tree | 86d31641040255aa9e86ba19f3c19831de9d35e2 /drivers/fpga | |
| parent | 5bcead7cde68cc58212018e376b1cef2ab2d2ee2 (diff) | |
fpga: machxo2-spi: Return an error on failure
[ 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>
Diffstat (limited to 'drivers/fpga')
| -rw-r--r-- | drivers/fpga/machxo2-spi.c | 5 |
1 files changed, 4 insertions, 1 deletions
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; } |