random: fix debug format strings

Fix the following warnings in formatting debug output:

drivers/char/random.c: In function ‘xfer_secondary_pool’:
drivers/char/random.c:827: warning: format ‘%d’ expects type ‘int’, but argument 7 has type ‘size_t’
drivers/char/random.c: In function ‘account’:
drivers/char/random.c:859: warning: format ‘%d’ expects type ‘int’, but argument 5 has type ‘size_t’
drivers/char/random.c:881: warning: format ‘%d’ expects type ‘int’, but argument 5 has type ‘size_t’
drivers/char/random.c: In function ‘random_read’:
drivers/char/random.c:1141: warning: format ‘%d’ expects type ‘int’, but argument 5 has type ‘ssize_t’
drivers/char/random.c:1145: warning: format ‘%d’ expects type ‘int’, but argument 5 has type ‘ssize_t’
drivers/char/random.c:1145: warning: format ‘%d’ expects type ‘int’, but argument 6 has type ‘long unsigned int’

by using '%zd' instead of '%d' to properly denote ssize_t/size_t conversion.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

1 files changed, 10 insertions, 9 deletions

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 9ac4443a185..a1af1839576 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -825,7 +825,7 @@ static void xfer_secondary_pool(struct entropy_store *r, size_t nbytes)
                 bytes = min_t(int, bytes, sizeof(tmp));
 
                 DEBUG_ENT("going to reseed %s with %d bits "
-                          "(%d of %d requested)\n",
+                          "(%zu of %d requested)\n",
                           r->name, bytes * 8, nbytes * 8, r->entropy_count);
 
                 bytes = extract_entropy(r->pull, tmp, bytes,
@@ -856,7 +856,7 @@ static size_t account(struct entropy_store *r, size_t nbytes, int min,
         spin_lock_irqsave(&r->lock, flags);
 
         BUG_ON(r->entropy_count > r->poolinfo->POOLBITS);
-        DEBUG_ENT("trying to extract %d bits from %s\n",
+        DEBUG_ENT("trying to extract %zu bits from %s\n",
                   nbytes * 8, r->name);
 
         /* Can we pull enough? */
@@ -878,7 +878,7 @@ static size_t account(struct entropy_store *r, size_t nbytes, int min,
                 }
         }
 
-        DEBUG_ENT("debiting %d entropy credits from %s%s\n",
+        DEBUG_ENT("debiting %zu entropy credits from %s%s\n",
                   nbytes * 8, r->name, r->limit ? "" : " (unlimited)");
 
         spin_unlock_irqrestore(&r->lock, flags);
@@ -1138,11 +1138,16 @@ random_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
                 if (n > SEC_XFER_SIZE)
                         n = SEC_XFER_SIZE;
 
-                DEBUG_ENT("reading %d bits\n", n*8);
+                DEBUG_ENT("reading %zu bits\n", n*8);
 
                 n = extract_entropy_user(&blocking_pool, buf, n);
 
-                DEBUG_ENT("read got %d bits (%d still needed)\n",
+                if (n < 0) {
+                        retval = n;
+                        break;
+                }
+
+                DEBUG_ENT("read got %zd bits (%zd still needed)\n",
                           n*8, (nbytes-n)*8);
 
                 if (n == 0) {
@@ -1167,10 +1172,6 @@ random_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
                         continue;
                 }
 
-                if (n < 0) {
-                        retval = n;
-                        break;
-                }
                 count += n;
                 buf += n;
                 nbytes -= n;