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pstore: Make sure console capturing will restart 

The CON_ENABLED flag gets cleared during unregister_console(), so make
sure we already reset the console flags before calling register_console(),
otherwise unloading and reloading a pstore backend will not restart
console logging.

Signed-off-by: Kees Cook <keescook@chromium.org>
This commit is contained in:
Kees Cook 2020-05-06 16:34:42 -07:00
parent 609e28bb13
commit b7753fc7f6
1 changed files with 5 additions and 1 deletions
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6
fs/pstore/platform.c
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@ -516,12 +516,16 @@ static void pstore_console_write(struct console *con, const char *s, unsigned c)
static struct console pstore_console = { static struct console pstore_console = {
.name = "pstore", .name = "pstore",
.write = pstore_console_write, .write = pstore_console_write,
.flags = CON_PRINTBUFFER | CON_ENABLED | CON_ANYTIME,
.index = -1, .index = -1,
}; };
static void pstore_register_console(void) static void pstore_register_console(void)
{ {
/*
* Always initialize flags here since prior unregister_console()
* calls may have changed settings (specifically CON_ENABLED).
*/
pstore_console.flags = CON_PRINTBUFFER | CON_ENABLED | CON_ANYTIME;
register_console(&pstore_console); register_console(&pstore_console);
} }