[PATCH v5] staging: gasket: Create a free memory error path

[Ioannis Valasakis <code@wizofe.uk>]

Create an error handling path for memory allocation. It avoids repeating
the same assignments and returns the respective ENOMEM.

Signed-off-by: Ioannis Valasakis <code@wizofe.uk>
---
Changes in v5:
	- Typo on the error handling label

drivers/staging/gasket/gasket_interrupt.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/gasket/gasket_interrupt.c b/drivers/staging/gasket/gasket_interrupt.c
index 49d47afad64f..1a3e8b17e714 100644
--- a/drivers/staging/gasket/gasket_interrupt.c
+++ b/drivers/staging/gasket/gasket_interrupt.c
@@ -340,17 +340,14 @@ int gasket_interrupt_init(struct gasket_dev *gasket_dev)
 					       sizeof(struct eventfd_ctx *),
 					       GFP_KERNEL);
 	if (!interrupt_data->eventfd_ctxs) {
-		kfree(interrupt_data);
-		return -ENOMEM;
+		goto err_free_ctxs;
 	}
 
 	interrupt_data->interrupt_counts = kcalloc(driver_desc->num_interrupts,
 						   sizeof(ulong),
 						   GFP_KERNEL);
 	if (!interrupt_data->interrupt_counts) {
-		kfree(interrupt_data->eventfd_ctxs);
-		kfree(interrupt_data);
-		return -ENOMEM;
+		goto err_free_counts;
 	}
 
 	switch (interrupt_data->type) {
@@ -379,6 +376,12 @@ int gasket_interrupt_init(struct gasket_dev *gasket_dev)
 				    interrupt_sysfs_attrs);
 
 	return 0;
+
+err_free_counts:
+	kfree(interrupt_data->eventfd_ctxs);
+err_free_ctxs:
+	kfree(interrupt_data);
+	return -ENOMEM;
 }
 
 static void
-- 
2.19.1