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/nvidia/nvidia.c | 15 ++++++++++-----
1 file changed, 10 insertions(+), 5 deletions(-)
diff --git a/drivers/video/fbdev/nvidia/nvidia.c b/drivers/video/fbdev/nvidia/nvidia.c
index 8ad4bcff84df..d779163f919a 100644
--- a/drivers/video/fbdev/nvidia/nvidia.c
+++ b/drivers/video/fbdev/nvidia/nvidia.c
@@ -10,6 +10,7 @@
*/
#include <linux/aperture.h>
+#include <linux/cmdline.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
@@ -1459,17 +1460,18 @@ static void nvidiafb_remove(struct pci_dev *pd)
* ------------------------------------------------------------------------- */
#ifndef MODULE
-static int nvidiafb_setup(char *options)
+static int nvidiafb_setup(const char *options)
{
+ struct option_iter iter;
char *this_opt;
NVTRACE_ENTER();
- if (!options || !*options)
- return 0;
- while ((this_opt = strsep(&options, ",")) != NULL) {
+ option_iter_init(&iter, options);
+
+ while (option_iter_next(&iter, &this_opt)) {
if (!strncmp(this_opt, "forceCRTC", 9)) {
- char *p;
+ const char *p;
p = this_opt + 9;
if (!*p || !*(++p))
@@ -1505,6 +1507,9 @@ static int nvidiafb_setup(char *options)
mode_option = mode_option_buf;
}
}
+
+ option_iter_release(&iter);
+
NVTRACE_LEAVE();
return 0;
}
--
2.39.2
