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-rw-r--r--common/console.c27
1 files changed, 13 insertions, 14 deletions
diff --git a/common/console.c b/common/console.c
index a0a06f6300..8a4b224740 100644
--- a/common/console.c
+++ b/common/console.c
@@ -62,22 +62,21 @@ static int console_std_set(struct device_d *dev, struct param_d *param,
char active[4];
unsigned int flag = 0, i = 0;
- if (!val)
- dev_param_set_generic(dev, param, NULL);
-
- if (strchr(val, 'i') && cdev->f_caps & CONSOLE_STDIN) {
- active[i++] = 'i';
- flag |= CONSOLE_STDIN;
- }
+ if (val) {
+ if (strchr(val, 'i') && cdev->f_caps & CONSOLE_STDIN) {
+ active[i++] = 'i';
+ flag |= CONSOLE_STDIN;
+ }
- if (strchr(val, 'o') && cdev->f_caps & CONSOLE_STDOUT) {
- active[i++] = 'o';
- flag |= CONSOLE_STDOUT;
- }
+ if (strchr(val, 'o') && cdev->f_caps & CONSOLE_STDOUT) {
+ active[i++] = 'o';
+ flag |= CONSOLE_STDOUT;
+ }
- if (strchr(val, 'e') && cdev->f_caps & CONSOLE_STDERR) {
- active[i++] = 'e';
- flag |= CONSOLE_STDERR;
+ if (strchr(val, 'e') && cdev->f_caps & CONSOLE_STDERR) {
+ active[i++] = 'e';
+ flag |= CONSOLE_STDERR;
+ }
}
active[i] = 0;