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Fixed possible NULL pointer dereference. (from Sergey Oboguev)

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This commit is contained in:
Mark Pizzolato 2012-04-12 14:48:26 -07:00
parent c6c9e0c3ac
commit 190993b5f4
1 changed files with 2 additions and 1 deletions
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3
sim_disk.c
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@ -1025,13 +1025,14 @@ return SCPE_OK;
t_stat sim_disk_detach (UNIT *uptr) t_stat sim_disk_detach (UNIT *uptr)
{ {
struct disk_context *ctx = (struct disk_context *)uptr->disk_ctx; struct disk_context *ctx;
int (*close_function)(FILE *f); int (*close_function)(FILE *f);
FILE *fileref; FILE *fileref;
t_bool auto_format; t_bool auto_format;
if (uptr == NULL) if (uptr == NULL)
return SCPE_IERR; return SCPE_IERR;
ctx = (struct disk_context *)uptr->disk_ctx;
fileref = uptr->fileref; fileref = uptr->fileref;
switch (DK_GET_FMT (uptr)) { /* case on format */ switch (DK_GET_FMT (uptr)) { /* case on format */
case DKUF_F_STD: /* Simh */ case DKUF_F_STD: /* Simh */