Input: I8042 - add Acer Aspire 7738 to the nomux list

[firefly-linux-kernel-4.4.55.git] / fs / proc / task_mmu.c

diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 3e636d864d5666aa2b7a58a5f61af214e6d30832..65fc60a07c47ba7fb13879f130c4c9c93046c18f 100644 (file)
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -792,14 +792,14 @@ typedef struct {
 } pagemap_entry_t;
 
 struct pagemapread {
-       int pos, len;
+       int pos, len;           /* units: PM_ENTRY_BYTES, not bytes */
        pagemap_entry_t *buffer;
 };
 
 #define PAGEMAP_WALK_SIZE      (PMD_SIZE)
 #define PAGEMAP_WALK_MASK      (PMD_MASK)
 
-#define PM_ENTRY_BYTES      sizeof(u64)
+#define PM_ENTRY_BYTES      sizeof(pagemap_entry_t)
 #define PM_STATUS_BITS      3
 #define PM_STATUS_OFFSET    (64 - PM_STATUS_BITS)
 #define PM_STATUS_MASK      (((1LL << PM_STATUS_BITS) - 1) << PM_STATUS_OFFSET)
@@ -1038,8 +1038,8 @@ static ssize_t pagemap_read(struct file *file, char __user *buf,
        if (!count)
                goto out_task;
 
-       pm.len = PM_ENTRY_BYTES * (PAGEMAP_WALK_SIZE >> PAGE_SHIFT);
-       pm.buffer = kmalloc(pm.len, GFP_TEMPORARY);
+       pm.len = (PAGEMAP_WALK_SIZE >> PAGE_SHIFT);
+       pm.buffer = kmalloc(pm.len * PM_ENTRY_BYTES, GFP_TEMPORARY);
        ret = -ENOMEM;
        if (!pm.buffer)
                goto out_task;