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apps/nshlib/nsh_console.c: Do not dereference NULL 'pstate'

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This commit is contained in:
Juha Niskanen
2018-08-29 06:18:30 -06:00
committed by Gregory Nutt
parent b33eaf881d
commit cef306e335
1 changed files with 17 additions and 17 deletions
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34
nshlib/nsh_console.c
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@@ -440,22 +440,28 @@ FAR struct console_stdio_s *nsh_newconsole(void)
/* Initialize the call table */ /* Initialize the call table */
#ifndef CONFIG_NSH_DISABLEBG #ifndef CONFIG_NSH_DISABLEBG
pstate->cn_vtbl.clone = nsh_consoleclone; pstate->cn_vtbl.clone = nsh_consoleclone;
pstate->cn_vtbl.release = nsh_consolerelease; pstate->cn_vtbl.release = nsh_consolerelease;
#endif
pstate->cn_vtbl.write = nsh_consolewrite;
pstate->cn_vtbl.output = nsh_consoleoutput;
pstate->cn_vtbl.linebuffer = nsh_consolelinebuffer;
pstate->cn_vtbl.exit = nsh_consoleexit;
#ifndef CONFIG_NSH_DISABLESCRIPT
/* Set the initial option flags */
pstate->cn_vtbl.np.np_flags = NSH_NP_SET_OPTIONS_INIT;
#endif #endif
pstate->cn_vtbl.write = nsh_consolewrite;
pstate->cn_vtbl.output = nsh_consoleoutput;
pstate->cn_vtbl.linebuffer = nsh_consolelinebuffer;
pstate->cn_vtbl.exit = nsh_consoleexit;
#if CONFIG_NFILE_STREAMS > 0 #if CONFIG_NFILE_STREAMS > 0
pstate->cn_vtbl.redirect = nsh_consoleredirect; pstate->cn_vtbl.redirect = nsh_consoleredirect;
pstate->cn_vtbl.undirect = nsh_consoleundirect; pstate->cn_vtbl.undirect = nsh_consoleundirect;
/* (Re-) open the console input device */ /* (Re-) open the console input device */
#ifdef CONFIG_NSH_ALTCONDEV #ifdef CONFIG_NSH_ALTCONDEV
pstate->cn_confd = open(CONFIG_NSH_CONDEV, O_RDWR); pstate->cn_confd = open(CONFIG_NSH_CONDEV, O_RDWR);
if (pstate->cn_confd < 0) if (pstate->cn_confd < 0)
{ {
free(pstate); free(pstate);
@@ -475,16 +481,10 @@ FAR struct console_stdio_s *nsh_newconsole(void)
/* Initialize the output stream */ /* Initialize the output stream */
pstate->cn_outfd = OUTFD(pstate); pstate->cn_outfd = OUTFD(pstate);
pstate->cn_outstream = OUTSTREAM(pstate); pstate->cn_outstream = OUTSTREAM(pstate);
#endif #endif
} }
#ifndef CONFIG_NSH_DISABLESCRIPT
/* Set the initial option flags */
pstate->cn_vtbl.np.np_flags = NSH_NP_SET_OPTIONS_INIT;
#endif
return pstate; return pstate;
} }