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First check whether the USB transfer was cancelled before starting to

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use the data structures related to that keyboard.
This commit is contained in:
n_hibma 2001-09-01 09:38:45 +00:00
parent 7346657593
commit 600918fc15
1 changed files with 12 additions and 9 deletions
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21
sys/dev/usb/ukbd.c
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@ -683,25 +683,21 @@ Static int
ukbd_interrupt(keyboard_t *kbd, void *arg)
{
usbd_status status = (usbd_status)arg;
ukbd_state_t *state = (ukbd_state_t *)kbd->kb_data;
struct ukbd_data *ud = &state->ks_ndata;
ukbd_state_t *state;
struct ukbd_data *ud;
struct timeval tv;
u_long now;
int mod, omod;
int key, c;
int i, j;
#define ADDKEY1(c) \
if (state->ks_inputs < INPUTBUFSIZE) { \
state->ks_input[state->ks_inputtail] = (c); \
++state->ks_inputs; \
state->ks_inputtail = (state->ks_inputtail + 1)%INPUTBUFSIZE; \
}
DPRINTFN(5, ("ukbd_intr: status=%d\n", status));
if (status == USBD_CANCELLED)
return 0;
state = (ukbd_state_t *)kbd->kb_data;
ud = &state->ks_ndata;
if (status != USBD_NORMAL_COMPLETION) {
DPRINTF(("ukbd_intr: status=%d\n", status));
usbd_clear_endpoint_stall_async(state->ks_intrpipe);
@ -714,6 +710,13 @@ ukbd_interrupt(keyboard_t *kbd, void *arg)
getmicrouptime(&tv);
now = (u_long)tv.tv_sec*1000 + (u_long)tv.tv_usec/1000;
#define ADDKEY1(c) \
if (state->ks_inputs < INPUTBUFSIZE) { \
state->ks_input[state->ks_inputtail] = (c); \
++state->ks_inputs; \
state->ks_inputtail = (state->ks_inputtail + 1)%INPUTBUFSIZE; \
}
mod = ud->modifiers;
omod = state->ks_odata.modifiers;
if (mod != omod) {