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| author | Tomas Vanek <vanekt@fbl.cz> | 2020-03-13 15:13:21 +0100 |
|---|---|---|
| committer | Oleksij Rempel <linux@rempel-privat.de> | 2020-04-20 18:26:33 +0100 |
| commit | 6dcd255b7bde5d7d3a8805c3a0e81f5edf42ccf4 (patch) | |
| tree | f24bcaba9e4c105e7d20fcc382c3e0b6f63c9d83 /src/jtag/drivers/ulink.c | |
| parent | c0644401622d1d5bf42e522452c7c9f83293cfd8 (diff) | |
| download | riscv-openocd-6dcd255b7bde5d7d3a8805c3a0e81f5edf42ccf4.zip riscv-openocd-6dcd255b7bde5d7d3a8805c3a0e81f5edf42ccf4.tar.gz riscv-openocd-6dcd255b7bde5d7d3a8805c3a0e81f5edf42ccf4.tar.bz2 | |
jtag/drivers/ulink: fix clang static analyzer warning
scan-build-9:
Description: Access to field 'payload_in' results in a dereference
of a null pointer (loaded from field 'queue_start')
File: src/jtag/drivers/ulink.c
Line: 2216
Set input/output_signals conditionally if ulink_append_get_signals_cmd()
and ulink_execute_queued_commands() returns no error.
Do not fail driver initialisation as the signals are only printed.
Change-Id: I6c842f0e9a604712abf7444a2fa95ba5810de1ff
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/5520
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-by: Oleksij Rempel <linux@rempel-privat.de>
Diffstat (limited to 'src/jtag/drivers/ulink.c')
| -rw-r--r-- | src/jtag/drivers/ulink.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/src/jtag/drivers/ulink.c b/src/jtag/drivers/ulink.c index 9235eb8..4066d61 100644 --- a/src/jtag/drivers/ulink.c +++ b/src/jtag/drivers/ulink.c @@ -2210,14 +2210,17 @@ static int ulink_init(void) } ulink_clear_queue(ulink_handle); - ulink_append_get_signals_cmd(ulink_handle); - ulink_execute_queued_commands(ulink_handle, 200); + ret = ulink_append_get_signals_cmd(ulink_handle); + if (ret == ERROR_OK) + ret = ulink_execute_queued_commands(ulink_handle, 200); - /* Post-process the single CMD_GET_SIGNALS command */ - input_signals = ulink_handle->queue_start->payload_in[0]; - output_signals = ulink_handle->queue_start->payload_in[1]; + if (ret == ERROR_OK) { + /* Post-process the single CMD_GET_SIGNALS command */ + input_signals = ulink_handle->queue_start->payload_in[0]; + output_signals = ulink_handle->queue_start->payload_in[1]; - ulink_print_signal_states(input_signals, output_signals); + ulink_print_signal_states(input_signals, output_signals); + } ulink_clear_queue(ulink_handle); |