Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto update from Herbert Xu:
 "Algorithms:
   - Add RSA padding algorithm

  Drivers:
   - Add GCM mode support to atmel
   - Add atmel support for SAMA5D2 devices
   - Add cipher modes to talitos
   - Add rockchip driver for rk3288
   - Add qat support for C3XXX and C62X"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (103 commits)
  crypto: hifn_795x, picoxcell - use ablkcipher_request_cast
  crypto: qat - fix SKU definiftion for c3xxx dev
  crypto: qat - Fix random config build issue
  crypto: ccp - use to_pci_dev and to_platform_device
  crypto: qat - Rename dh895xcc mmp firmware
  crypto: 842 - remove WARN inside printk
  crypto: atmel-aes - add debug facilities to monitor register accesses.
  crypto: atmel-aes - add support to GCM mode
  crypto: atmel-aes - change the DMA threshold
  crypto: atmel-aes - fix the counter overflow in CTR mode
  crypto: atmel-aes - fix atmel-ctr-aes driver for RFC 3686
  crypto: atmel-aes - create sections to regroup functions by usage
  crypto: atmel-aes - fix typo and indentation
  crypto: atmel-aes - use SIZE_IN_WORDS() helper macro
  crypto: atmel-aes - improve performances of data transfer
  crypto: atmel-aes - fix atmel_aes_remove()
  crypto: atmel-aes - remove useless AES_FLAGS_DMA flag
  crypto: atmel-aes - reduce latency of DMA completion
  crypto: atmel-aes - remove unused 'err' member of struct atmel_aes_dev
  crypto: atmel-aes - rework crypto request completion
  ...

drivers/char/hw_random/core.c

@@ -238,7 +238,10 @@ static ssize_t rng_dev_read(struct file *filp, char __user *buf,
 			goto out;
 		}
 
-		mutex_lock(&reading_mutex);
+		if (mutex_lock_interruptible(&reading_mutex)) {
+			err = -ERESTARTSYS;
+			goto out_put;
+		}
 		if (!data_avail) {
 			bytes_read = rng_get_data(rng, rng_buffer,
 				rng_buffer_size(),
@@ -288,6 +291,7 @@ out:
 
 out_unlock_reading:
 	mutex_unlock(&reading_mutex);
+out_put:
 	put_rng(rng);
 	goto out;
 }

drivers/char/hw_random/omap3-rom-rng.c

@@ -17,7 +17,7 @@
 #include <linux/init.h>
 #include <linux/random.h>
 #include <linux/hw_random.h>
-#include <linux/timer.h>
+#include <linux/workqueue.h>
 #include <linux/clk.h>
 #include <linux/err.h>
 #include <linux/platform_device.h>
@@ -29,11 +29,11 @@
 /* param1: ptr, param2: count, param3: flag */
 static u32 (*omap3_rom_rng_call)(u32, u32, u32);
 
-static struct timer_list idle_timer;
+static struct delayed_work idle_work;
 static int rng_idle;
 static struct clk *rng_clk;
 
-static void omap3_rom_rng_idle(unsigned long data)
+static void omap3_rom_rng_idle(struct work_struct *work)
 {
 	int r;
 
@@ -51,7 +51,7 @@ static int omap3_rom_rng_get_random(void *buf, unsigned int count)
 	u32 r;
 	u32 ptr;
 
-	del_timer_sync(&idle_timer);
+	cancel_delayed_work_sync(&idle_work);
 	if (rng_idle) {
 		clk_prepare_enable(rng_clk);
 		r = omap3_rom_rng_call(0, 0, RNG_GEN_PRNG_HW_INIT);
@@ -65,7 +65,7 @@ static int omap3_rom_rng_get_random(void *buf, unsigned int count)
 
 	ptr = virt_to_phys(buf);
 	r = omap3_rom_rng_call(ptr, count, RNG_GEN_HW);
-	mod_timer(&idle_timer, jiffies + msecs_to_jiffies(500));
+	schedule_delayed_work(&idle_work, msecs_to_jiffies(500));
 	if (r != 0)
 		return -EINVAL;
 	return 0;
@@ -102,7 +102,7 @@ static int omap3_rom_rng_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	setup_timer(&idle_timer, omap3_rom_rng_idle, 0);
+	INIT_DELAYED_WORK(&idle_work, omap3_rom_rng_idle);
 	rng_clk = devm_clk_get(&pdev->dev, "ick");
 	if (IS_ERR(rng_clk)) {
 		pr_err("unable to get RNG clock\n");
@@ -118,6 +118,7 @@ static int omap3_rom_rng_probe(struct platform_device *pdev)
 
 static int omap3_rom_rng_remove(struct platform_device *pdev)
 {
+	cancel_delayed_work_sync(&idle_work);
 	hwrng_unregister(&omap3_rom_rng_ops);
 	clk_disable_unprepare(rng_clk);
 	return 0;