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don't make susp_count negative.

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Ben Gras 2009-04-02 11:44:26 +00:00
parent b560a36b20
commit 73ee8b8b99
1 changed files with 3 additions and 1 deletions
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4
servers/vfs/pipe.c
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@ -352,13 +352,15 @@ int count; /* max number of processes to release */
} }
/* Search the proc table. */ /* Search the proc table. */
for (rp = &fproc[0]; rp < &fproc[NR_PROCS]; rp++) { for (rp = &fproc[0]; rp < &fproc[NR_PROCS] && count > 0; rp++) {
if (rp->fp_pid != PID_FREE && rp->fp_suspended == SUSPENDED && if (rp->fp_pid != PID_FREE && rp->fp_suspended == SUSPENDED &&
rp->fp_revived == NOT_REVIVING && rp->fp_revived == NOT_REVIVING &&
(rp->fp_fd & BYTE) == call_nr && (rp->fp_fd & BYTE) == call_nr &&
rp->fp_filp[rp->fp_fd>>8]->filp_vno == vp) { rp->fp_filp[rp->fp_fd>>8]->filp_vno == vp) {
revive(rp->fp_endpoint, 0); revive(rp->fp_endpoint, 0);
susp_count--; /* keep track of who is suspended */ susp_count--; /* keep track of who is suspended */
if(susp_count < 0)
panic("vfs", "susp_count now negative", susp_count);
if (--count == 0) return; if (--count == 0) return;
} }
} }