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drivers/cmsis_dap_usb: Return with ERROR_FAIL if no CMSIS-DAP device is found. 

Even if it does not return, the initialization will be failed.
But it is better to show why the error is caused.

Change-Id: I399c7c94a7156be22723a9715e594061bb414a7e
Signed-off-by: Masaki Muranaka <monaka@monami-ya.com>
Reviewed-on: http://openocd.zylin.com/2189
Tested-by: jenkins
Reviewed-by: Andrey Yurovsky <yurovsky@gmail.com>
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
__archive__
Masaki Muranaka 2014-06-24 09:33:05 +09:00 committed by Spencer Oliver
parent 915e06b3f0
commit 11274d2283
1 changed files with 5 additions and 0 deletions
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5
src/jtag/drivers/cmsis_dap_usb.c
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@ -208,6 +208,11 @@ static int cmsis_dap_usb_open(void)
hid_free_enumeration(devs); hid_free_enumeration(devs);
if (target_vid == 0 && target_pid == 0) {
LOG_ERROR("unable to find CMSIS-DAP device");
return ERROR_FAIL;
}
if (hid_init() != 0) { if (hid_init() != 0) {
LOG_ERROR("unable to open HIDAPI"); LOG_ERROR("unable to open HIDAPI");
return ERROR_FAIL; return ERROR_FAIL;