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cmd: Fix potential NULL pointer dereference 

Signed-off-by: Pavel Borzenkov <pavel.borzenkov@gmail.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
This commit is contained in:
Pavel Borzenkov 2011-10-31 22:53:37 +04:00 committed by Stefan Hajnoczi
parent 81beeec429
commit ba7806ad92
1 changed files with 3 additions and 8 deletions
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11
cmd.c
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@ -47,7 +47,7 @@ compare(const void *a, const void *b)
void add_command(const cmdinfo_t *ci) void add_command(const cmdinfo_t *ci)
{ {
cmdtab = realloc((void *)cmdtab, ++ncmds * sizeof(*cmdtab)); cmdtab = g_realloc((void *)cmdtab, ++ncmds * sizeof(*cmdtab));
cmdtab[ncmds - 1] = *ci; cmdtab[ncmds - 1] = *ci;
qsort(cmdtab, ncmds, sizeof(*cmdtab), compare); qsort(cmdtab, ncmds, sizeof(*cmdtab), compare);
} }
@ -122,12 +122,7 @@ find_command(
void add_user_command(char *optarg) void add_user_command(char *optarg)
{ {
ncmdline++; cmdline = g_realloc(cmdline, ++ncmdline * sizeof(char *));
cmdline = realloc(cmdline, ncmdline * sizeof(char *));
if (!cmdline) {
perror("realloc");
exit(1);
}
cmdline[ncmdline-1] = optarg; cmdline[ncmdline-1] = optarg;
} }
@ -190,7 +185,7 @@ void command_loop(void)
doneline(input, v); doneline(input, v);
} }
if (cmdline) { if (cmdline) {
free(cmdline); g_free(cmdline);
return; return;
} }