[PATCH 1/1] staging: unisys: small parser.c bug fix

[Jeffrey Brown <Jeffrey.Brown@xxxxxxxxxx>]

Replaced "cleanups" in the struct parser_init_guts with err_rgn,
err_ctx, and out_rgn. The purpose is to remove redundant code and
have proper error handling. Put "goto out_rgn" on lin 108 because
there was no "out_ctx".

Signed-off-by: Jeffrey Brown <Jeffrey.Brown@xxxxxxxxxx>
---
 drivers/staging/unisys/visorchipset/parser.c | 21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/unisys/visorchipset/parser.c b/drivers/staging/unisys/visorchipset/parser.c
index 2897125..d31c856 100644
--- a/drivers/staging/unisys/visorchipset/parser.c
+++ b/drivers/staging/unisys/visorchipset/parser.c
@@ -71,7 +71,6 @@ parser_init_guts(u64 addr, u32 bytes, BOOL is_local,
 		       __func__, __FILE__, __LINE__, allocbytes);
 		if (try_again)
 			*try_again = TRUE;
-		rc = NULL;
 		return NULL;
 	}
 
@@ -87,40 +86,41 @@ parser_init_guts(u64 addr, u32 bytes, BOOL is_local,
 			ERRDRV("%s - bad local address (0x%-16.16Lx for %lu)",
 			       __func__,
 			       (unsigned long long)addr, (ulong)bytes);
-			rc = NULL;
+			return NULL;
+			goto err_ctx;
 		}
 		p = __va((ulong)(addr));
 		memcpy(ctx->data, p, bytes);
 	} else {
 		rgn = visor_memregion_create(addr, bytes);
 		if (!rgn) {
-			rc = NULL;
+			return NULL;
 			goto err_ctx;
 		}
 		if (visor_memregion_read(rgn, 0, ctx->data, bytes) < 0) {
-			rc = NULL;
+			return NULL;
 			goto err_ctx;
 		}
 	}
 	if (!has_standard_payload_header) {
 		ctx->byte_stream = TRUE;
 		rc = ctx;
-		goto err_rgn;
+		goto out_rgn;
 	}
 	phdr = (struct spar_controlvm_parameters_header *)(ctx->data);
 	if (phdr->total_length != bytes) {
 		ERRDRV("%s - bad total length %lu (should be %lu)",
 		       __func__,
 		       (ulong)(phdr->total_length), (ulong)(bytes));
-		rc = NULL;
-		goto out_rgn;
+		return NULL;
+		goto err_rgn;
 	}
 	if (phdr->total_length < phdr->header_length) {
 		ERRDRV("%s - total length < header length (%lu < %lu)",
 		       __func__,
 		       (ulong)(phdr->total_length),
 		       (ulong)(phdr->header_length));
-		rc = NULL;
+		return NULL;
 		goto err_rgn;
 	}
 	if (phdr->header_length <
@@ -130,7 +130,7 @@ parser_init_guts(u64 addr, u32 bytes, BOOL is_local,
 		       (ulong)(phdr->header_length),
 		       (ulong)(sizeof(
 				struct spar_controlvm_parameters_header)));
-		rc = NULL;
+		return NULL;
 		goto err_rgn;
 	}
 
@@ -138,7 +138,8 @@ out_rgn:
 	if (rgn)
 		visor_memregion_destroy(rgn);
 
-	return ctx;
+		controlvm_payload_bytes_buffered += ctx->param_bytes;
+			return ctx;
 
 err_rgn:
 	if (rgn)
-- 
1.8.4

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