Use struct option_iter to walk over the individual options in the
driver's option string. Replaces the hand-written strsep() loop with
a clean interface. The helpers for struct option_iter handle empty
option strings and empty options transparently. The struct's _init
and _release functions duplicate and release the option string's
memory buffer as needed.
Done in preparation of constifying the option string.
Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
---
drivers/video/fbdev/omap/omapfb_main.c | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/drivers/video/fbdev/omap/omapfb_main.c b/drivers/video/fbdev/omap/omapfb_main.c
index 1f3df2055ff0..db5256c71f5b 100644
--- a/drivers/video/fbdev/omap/omapfb_main.c
+++ b/drivers/video/fbdev/omap/omapfb_main.c
@@ -11,6 +11,7 @@
* Dirk Behme <dirk.behme@xxxxxxxxxxxx> - changes for 2.6 kernel API
* Texas Instruments - H3 support
*/
+#include <linux/cmdline.h>
#include <linux/platform_device.h>
#include <linux/mm.h>
#include <linux/slab.h>
@@ -1842,17 +1843,17 @@ static struct platform_driver omapfb_driver = {
#ifndef MODULE
/* Process kernel command line parameters */
-static int __init omapfb_setup(char *options)
+static int __init omapfb_setup(const char *options)
{
- char *this_opt = NULL;
+ struct option_iter iter;
+ char *this_opt;
int r = 0;
pr_debug("omapfb: options %s\n", options);
- if (!options || !*options)
- return 0;
+ option_iter_init(&iter, options);
- while (!r && (this_opt = strsep(&options, ",")) != NULL) {
+ while (option_iter_next(&iter, &this_opt)) {
if (!strncmp(this_opt, "accel", 5))
def_accel = 1;
else if (!strncmp(this_opt, "vram:", 5)) {
@@ -1893,6 +1894,8 @@ static int __init omapfb_setup(char *options)
}
}
+ option_iter_release(&iter);
+
return r;
}
--
2.39.2
