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Getting past a bug that caused a "free: multiple frees" panic. 

This should not be final code.
This commit is contained in:
phil 1993-09-13 07:25:06 +00:00
parent d3da2305a5
commit 663f916d6d
1 changed files with 6 additions and 4 deletions
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10
sys/arch/pc532/dev/scn.c
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@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* from: @(#)com.c 7.5 (Berkeley) 5/16/91
* $Id: scn.c,v 1.1.1.1 1993/09/09 23:53:52 phil Exp $
* $Id: scn.c,v 1.2 1993/09/13 07:25:06 phil Exp $
*/
#include "scn.h"
@ -487,9 +487,11 @@ scnclose(dev, flag, mode, p)
DELAY (10);
WR_ADR (u_char, rs->opset_port, DTR_BIT << rs->a_or_b);
}
ttyclose(tp);
ttyfree(tp);
scn_tty[unit] = (struct tty *)NULL;
if ((tp->t_state&TS_ISOPEN) == 0) {
ttyclose(tp);
ttyfree(tp);
scn_tty[unit] = (struct tty *)NULL;
}
return(0);
}