[PATCH] habanalabs: silence an uninitialized variable warning

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Smatch warns that:

    drivers/misc/habanalabs/common/command_buffer.c:471 hl_cb_ioctl()
    error: uninitialized symbol 'device_va'.

Which is true, but harmless.  Anyway, it's easy to silence this by
adding a error check.

Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
 drivers/misc/habanalabs/common/command_buffer.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/misc/habanalabs/common/command_buffer.c b/drivers/misc/habanalabs/common/command_buffer.c
index 3c0ae07a2d80..b9483a3cee91 100644
--- a/drivers/misc/habanalabs/common/command_buffer.c
+++ b/drivers/misc/habanalabs/common/command_buffer.c
@@ -464,6 +464,8 @@ int hl_cb_ioctl(struct hl_fpriv *hpriv, void *data)
 				args->in.flags,
 				&usage_cnt,
 				&device_va);
+		if (rc)
+			break;
 
 		memset(&args->out, 0, sizeof(args->out));
 
-- 
2.20.1




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