[dpdk-dev] [PATCH v4 1/9] rawdev: allow devices to skip extra memory allocation

[Bruce Richardson]

Some device drivers want to allocate their own private memory, and should
be allowed to do so. Therefore skip memory allocation and associated error
checks if zero-length private memory is requested.

While adjusting the code for new indent level, fix incorrect error
message.

Cc: Shreyansh Jain <shreyansh.jain at nxp.com>
Cc: Hemant Agrawal <hemant.agrawal at nxp.com>
Signed-off-by: Bruce Richardson <bruce.richardson at intel.com>
---
 lib/librte_rawdev/rte_rawdev.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/lib/librte_rawdev/rte_rawdev.c b/lib/librte_rawdev/rte_rawdev.c
index 15de2d413..b6f1e1c77 100644
--- a/lib/librte_rawdev/rte_rawdev.c
+++ b/lib/librte_rawdev/rte_rawdev.c
@@ -496,16 +496,17 @@ rte_rawdev_pmd_allocate(const char *name, size_t dev_priv_size, int socket_id)
 
 	rawdev = &rte_rawdevs[dev_id];
 
-	rawdev->dev_private = rte_zmalloc_socket("rawdev private",
+	if (dev_priv_size > 0) {
+		rawdev->dev_private = rte_zmalloc_socket("rawdev private",
 				     dev_priv_size,
 				     RTE_CACHE_LINE_SIZE,
 				     socket_id);
-	if (!rawdev->dev_private) {
-		RTE_RDEV_ERR("Unable to allocate memory to Skeleton dev");
-		return NULL;
+		if (!rawdev->dev_private) {
+			RTE_RDEV_ERR("Unable to allocate memory for rawdev");
+			return NULL;
+		}
 	}
 
-
 	rawdev->dev_id = dev_id;
 	rawdev->socket_id = socket_id;
 	rawdev->started = 0;
-- 
2.21.0