stdio_valid() will confirm that a struct stdio_dev pointer is indeed valid.
Signed-off-by: Nicolas Saenz Julienne nsaenzjulienne@suse.de
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Changes since v1: - Properly document function
common/stdio.c | 11 +++++++++++ include/stdio_dev.h | 11 +++++++++++ 2 files changed, 22 insertions(+)
diff --git a/common/stdio.c b/common/stdio.c index abf9b1e915..69b7d2692d 100644 --- a/common/stdio.c +++ b/common/stdio.c @@ -157,6 +157,17 @@ static int stdio_probe_device(const char *name, enum uclass_id id, return 0; }
+bool stdio_valid(struct stdio_dev *dev) +{ + struct stdio_dev *sdev; + + list_for_each_entry(sdev, &devs.list, list) + if (sdev == dev) + return true; + + return false; +} + struct stdio_dev *stdio_get_by_name(const char *name) { struct list_head *pos; diff --git a/include/stdio_dev.h b/include/stdio_dev.h index 48871a6a22..e9d610a840 100644 --- a/include/stdio_dev.h +++ b/include/stdio_dev.h @@ -98,6 +98,17 @@ struct list_head *stdio_get_list(void); struct stdio_dev *stdio_get_by_name(const char *name); struct stdio_dev *stdio_clone(struct stdio_dev *dev);
+/** + * stdio_valid() - Validate stdio device exists + * + * Verifies that dev is contained in the global list of stdio devices. + * + * @dev: Stdio device pointer + * + * returns 'true' when valid, 'false' otherwise + */ +bool stdio_valid(struct stdio_dev *dev); + int drv_lcd_init(void); int drv_video_init(void); int drv_keyboard_init(void);