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[skip ci] kernel: minor changes on ksu_sys_umount

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* Simplify value for 'ret', adding some comments

Signed-off-by: rsuntk <rsuntk@yukiprjkt.my.id>
This commit is contained in:
rsuntk
2025-06-09 22:16:29 +07:00
committed by ShirkNeko
parent 43590fc350
commit 58c31cb726
1 changed files with 7 additions and 4 deletions
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11
kernel/core_hook.c
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@@ -557,16 +557,19 @@ static void ksu_path_umount(const char *mnt, struct path *path, int flags)
pr_info("%s: path: %s ret: %d\n", __func__, mnt, ret);
}
#else
// TODO: Search a way to make this works without set_fs functions
static void ksu_sys_umount(const char *mnt, int flags)
{
char __user *usermnt = (char __user *)mnt;
mm_segment_t old_fs = get_fs();
mm_segment_t old_fs;
int ret; // although asmlinkage long
old_fs = get_fs();
set_fs(KERNEL_DS);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 17, 0)
int ret = ksys_umount(usermnt, flags);
ret = ksys_umount(usermnt, flags);
#else
long ret = sys_umount(usermnt, flags); // cuz asmlinkage long sys##name
ret = sys_umount(usermnt, flags); // cuz asmlinkage long sys##name
#endif
set_fs(old_fs);
pr_info("%s: path: %s ret: %d\n", __func__, usermnt, ret);