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delete_procfs_entries: fix possible crash if top entry has no children

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Change-Id: I209842699615f9bb58c12ccd262ae4b17f8f558c
This commit is contained in:
tinhnt86
2020-10-08 16:51:29 +07:00
committed by Masamichi Takagi
parent 442045a320
commit 3cc98883f5
1 changed files with 5 additions and 3 deletions
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8
executer/kernel/mcctrl/procfs.c
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@@ -126,7 +126,7 @@ find_procfs_entry(struct procfs_list_entry *parent, const char *name)
static void static void
delete_procfs_entries(struct procfs_list_entry *top) delete_procfs_entries(struct procfs_list_entry *top)
{ {
struct procfs_list_entry *e; struct procfs_list_entry *e = NULL;
struct procfs_list_entry *n; struct procfs_list_entry *n;
list_del(&top->list); list_del(&top->list);
@@ -136,8 +136,10 @@ delete_procfs_entries(struct procfs_list_entry *top)
} }
#if LINUX_VERSION_CODE < KERNEL_VERSION(3,10,0) #if LINUX_VERSION_CODE < KERNEL_VERSION(3,10,0)
e->entry->read_proc = NULL; if (e) {
e->entry->data = NULL; e->entry->read_proc = NULL;
e->entry->data = NULL;
}
#endif #endif
remove_proc_entry(top->name, top->parent? top->parent->entry: NULL); remove_proc_entry(top->name, top->parent? top->parent->entry: NULL);
if(top->data) if(top->data)