15 files changed, 36 insertions, 6 deletions

diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index efc1a61ca231..278cf5bceef2 100644
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c
@@ -22,6 +22,7 @@
 #include <linux/interrupt.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
+#include <linux/slab.h>
 
 #include "at_hdmac_regs.h"
 
diff --git a/drivers/dma/coh901318_lli.c b/drivers/dma/coh901318_lli.c
index 71d58c1a1e86..9f7e0e6a7eea 100644
--- a/drivers/dma/coh901318_lli.c
+++ b/drivers/dma/coh901318_lli.c
@@ -11,6 +11,7 @@
 #include <linux/spinlock.h>
 #include <linux/dmapool.h>
 #include <linux/memory.h>
+#include <linux/gfp.h>
 #include <mach/coh901318.h>
 
 #include "coh901318_lli.h"
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index 87399cafce37..d18b5d069d7e 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -58,6 +58,7 @@
 #include <linux/jiffies.h>
 #include <linux/rculist.h>
 #include <linux/idr.h>
+#include <linux/slab.h>
 
 static DEFINE_MUTEX(dma_list_mutex);
 static LIST_HEAD(dma_device_list);
diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index 6fa55fe3dd24..68d58c414cf0 100644
--- a/drivers/dma/dmatest.c
+++ b/drivers/dma/dmatest.c
@@ -14,6 +14,7 @@
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/random.h>
+#include <linux/slab.h>
 #include <linux/wait.h>
 
 static unsigned int test_buf_size = 16384;
diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c
index bbb4be5a3ff4..88f470f0d820 100644
--- a/drivers/dma/fsldma.c
+++ b/drivers/dma/fsldma.c
@@ -27,6 +27,7 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/pci.h>
+#include <linux/slab.h>
 #include <linux/interrupt.h>
 #include <linux/dmaengine.h>
 #include <linux/delay.h>
diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c
index 0099340b9616..3e5a8005c62b 100644
--- a/drivers/dma/ioat/dma.c
+++ b/drivers/dma/ioat/dma.c
@@ -27,6 +27,7 @@
 
 #include <linux/init.h>
 #include <linux/module.h>
+#include <linux/slab.h>
 #include <linux/pci.h>
 #include <linux/interrupt.h>
 #include <linux/dmaengine.h>
diff --git a/drivers/dma/ioat/dma_v2.c b/drivers/dma/ioat/dma_v2.c
index 1ed5d66d7dca..b5ae56c211e6 100644
--- a/drivers/dma/ioat/dma_v2.c
+++ b/drivers/dma/ioat/dma_v2.c
@@ -27,6 +27,7 @@
 
 #include <linux/init.h>
 #include <linux/module.h>
+#include <linux/slab.h>
 #include <linux/pci.h>
 #include <linux/interrupt.h>
 #include <linux/dmaengine.h>
diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c
index 26febc56dab1..6740e319c9cf 100644
--- a/drivers/dma/ioat/dma_v3.c
+++ b/drivers/dma/ioat/dma_v3.c
@@ -57,6 +57,7 @@
  */
 
 #include <linux/pci.h>
+#include <linux/gfp.h>
 #include <linux/dmaengine.h>
 #include <linux/dma-mapping.h>
 #include "registers.h"
diff --git a/drivers/dma/ioat/pci.c b/drivers/dma/ioat/pci.c
index d545fae30f37..99ec26725bae 100644
--- a/drivers/dma/ioat/pci.c
+++ b/drivers/dma/ioat/pci.c
@@ -30,6 +30,7 @@
 #include <linux/pci.h>
 #include <linux/interrupt.h>
 #include <linux/dca.h>
+#include <linux/slab.h>
 #include "dma.h"
 #include "dma_v2.h"
 #include "registers.h"
diff --git a/drivers/dma/iop-adma.c b/drivers/dma/iop-adma.c
index ca6e6a0cb793..1ebc801678b0 100644
--- a/drivers/dma/iop-adma.c
+++ b/drivers/dma/iop-adma.c
@@ -32,6 +32,7 @@
 #include <linux/memory.h>
 #include <linux/ioport.h>
 #include <linux/raid/pq.h>
+#include <linux/slab.h>
 
 #include <mach/adma.h>
 
diff --git a/drivers/dma/iovlock.c b/drivers/dma/iovlock.c
index c0a272c73682..bb48a57c2fc1 100644
--- a/drivers/dma/iovlock.c
+++ b/drivers/dma/iovlock.c
@@ -27,6 +27,7 @@
 
 #include <linux/dmaengine.h>
 #include <linux/pagemap.h>
+#include <linux/slab.h>
 #include <net/tcp.h> /* for memcpy_toiovec */
 #include <asm/io.h>
 #include <asm/uaccess.h>
diff --git a/drivers/dma/mpc512x_dma.c b/drivers/dma/mpc512x_dma.c
index 3fdf1f46bd63..bbbd58566625 100644
--- a/drivers/dma/mpc512x_dma.c
+++ b/drivers/dma/mpc512x_dma.c
@@ -37,6 +37,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
+#include <linux/slab.h>
 #include <linux/of_device.h>
 #include <linux/of_platform.h>
 
diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index 466ab10c1ff1..e2fd34da64f2 100644
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -18,6 +18,7 @@
 
 #include <linux/init.h>
 #include <linux/module.h>
+#include <linux/slab.h>
 #include <linux/delay.h>
 #include <linux/dma-mapping.h>
 #include <linux/spinlock.h>
diff --git a/drivers/dma/ppc4xx/adma.c b/drivers/dma/ppc4xx/adma.c
index e69d87f24a25..d44626fa35ad 100644
--- a/drivers/dma/ppc4xx/adma.c
+++ b/drivers/dma/ppc4xx/adma.c
@@ -38,6 +38,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/spinlock.h>
 #include <linux/interrupt.h>
+#include <linux/slab.h>
 #include <linux/uaccess.h>
 #include <linux/proc_fs.h>
 #include <linux/of.h>
diff --git a/drivers/dma/shdma.c b/drivers/dma/shdma.c
index aab352a63a4a..323afef77802 100644
--- a/drivers/dma/shdma.c
+++ b/drivers/dma/shdma.c
@@ -19,6 +19,7 @@
 
 #include <linux/init.h>
 #include <linux/module.h>
+#include <linux/slab.h>
 #include <linux/interrupt.h>
 #include <linux/dmaengine.h>
 #include <linux/delay.h>
@@ -288,6 +289,7 @@ static int sh_dmae_alloc_chan_resources(struct dma_chan *chan)
 	struct sh_dmae_chan *sh_chan = to_sh_chan(chan);
 	struct sh_desc *desc;
 	struct sh_dmae_slave *param = chan->private;
+	int ret;
 
 	pm_runtime_get_sync(sh_chan->dev);
 
@@ -299,11 +301,15 @@ static int sh_dmae_alloc_chan_resources(struct dma_chan *chan)
 		const struct sh_dmae_slave_config *cfg;
 
 		cfg = sh_dmae_find_slave(sh_chan, param);
-		if (!cfg)
-			return -EINVAL;
+		if (!cfg) {
+			ret = -EINVAL;
+			goto efindslave;
+		}
 
-		if (test_and_set_bit(param->slave_id, sh_dmae_slave_used))
-			return -EBUSY;
+		if (test_and_set_bit(param->slave_id, sh_dmae_slave_used)) {
+			ret = -EBUSY;
+			goto etestused;
+		}
 
 		param->config = cfg;
 
@@ -332,10 +338,20 @@ static int sh_dmae_alloc_chan_resources(struct dma_chan *chan)
 	}
 	spin_unlock_bh(&sh_chan->desc_lock);
 
-	if (!sh_chan->descs_allocated)
-		pm_runtime_put(sh_chan->dev);
+	if (!sh_chan->descs_allocated) {
+		ret = -ENOMEM;
+		goto edescalloc;
+	}
 
 	return sh_chan->descs_allocated;
+
+edescalloc:
+	if (param)
+		clear_bit(param->slave_id, sh_dmae_slave_used);
+etestused:
+efindslave:
+	pm_runtime_put(sh_chan->dev);
+	return ret;
 }
 
 /*