dma-debug: code style fixes

This patch changes the recent updates to dma-debug to conform with
coding style guidelines of Linux and the -tip tree.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>

diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index b8a61ff..9561825 100644 (file)
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -501,8 +501,8 @@ out_err:
 static ssize_t filter_read(struct file *file, char __user *user_buf,
                           size_t count, loff_t *ppos)
 {
-       unsigned long flags;
        char buf[NAME_MAX_LEN + 1];
+       unsigned long flags;
        int len;
 
        if (!current_driver_name[0])
@@ -523,9 +523,9 @@ static ssize_t filter_read(struct file *file, char __user *user_buf,
 static ssize_t filter_write(struct file *file, const char __user *userbuf,
                            size_t count, loff_t *ppos)
 {
-       unsigned long flags;
        char buf[NAME_MAX_LEN];
-       size_t len = NAME_MAX_LEN - 1;
+       unsigned long flags;
+       size_t len;
        int i;
 
        /*
@@ -534,7 +534,7 @@ static ssize_t filter_write(struct file *file, const char __user *userbuf,
         * disabled. Since copy_from_user can fault and may sleep we
         * need to copy to temporary buffer first
         */
-       len = min(count, len);
+       len = min(count, NAME_MAX_LEN - 1);
        if (copy_from_user(buf, userbuf, len))
                return -EFAULT;
 
@@ -1040,18 +1040,19 @@ EXPORT_SYMBOL(debug_dma_map_sg);
 
 static int get_nr_mapped_entries(struct device *dev, struct scatterlist *s)
 {
-       struct dma_debug_entry *entry;
+       struct dma_debug_entry *entry, ref;
        struct hash_bucket *bucket;
        unsigned long flags;
-       int mapped_ents = 0;
-       struct dma_debug_entry ref;
+       int mapped_ents;
 
-       ref.dev = dev;
+       ref.dev      = dev;
        ref.dev_addr = sg_dma_address(s);
-       ref.size = sg_dma_len(s),
+       ref.size     = sg_dma_len(s),
+
+       bucket       = get_hash_bucket(&ref, &flags);
+       entry        = hash_bucket_find(bucket, &ref);
+       mapped_ents  = 0;
 
-       bucket = get_hash_bucket(&ref, &flags);
-       entry = hash_bucket_find(bucket, &ref);
        if (entry)
                mapped_ents = entry->sg_mapped_ents;
        put_hash_bucket(bucket, &flags);