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/pm2fb.c | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/drivers/video/fbdev/pm2fb.c b/drivers/video/fbdev/pm2fb.c
index 69a0b2216a86..38c5c57ce2b0 100644
--- a/drivers/video/fbdev/pm2fb.c
+++ b/drivers/video/fbdev/pm2fb.c
@@ -28,6 +28,7 @@
*/
#include <linux/aperture.h>
+#include <linux/cmdline.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/kernel.h>
@@ -1773,16 +1774,14 @@ MODULE_DEVICE_TABLE(pci, pm2fb_id_table);
*
* This is, comma-separated options following `video=pm2fb:'.
*/
-static int __init pm2fb_setup(char *options)
+static int __init pm2fb_setup(const char *options)
{
+ struct option_iter iter;
char *this_opt;
- if (!options || !*options)
- return 0;
+ option_iter_init(&iter, options);
- while ((this_opt = strsep(&options, ",")) != NULL) {
- if (!*this_opt)
- continue;
+ while (option_iter_next(&iter, &this_opt)) {
if (!strcmp(this_opt, "lowhsync"))
lowhsync = 1;
else if (!strcmp(this_opt, "lowvsync"))
@@ -1799,6 +1798,9 @@ static int __init pm2fb_setup(char *options)
mode_option = mode_option_buf;
}
}
+
+ option_iter_release(&iter);
+
return 0;
}
#endif
--
2.39.2
