staging: unisys: visorchipset: parser_init_guts(): Localize memregion usage

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/unisys/visorbus/visorchipset.c b/drivers/staging/unisys/visorbus/visorchipset.c
index 5bf8266..2be8514 100644 (file)
--- a/drivers/staging/unisys/visorbus/visorchipset.c
+++ b/drivers/staging/unisys/visorbus/visorchipset.c
@@ -399,6 +399,7 @@ parser_init_guts(u64 addr, u32 bytes, bool local,
        struct parser_context *ctx = NULL;
        struct memregion *rgn = NULL;
        struct spar_controlvm_parameters_header *phdr = NULL;
+       int cnt;
 
        if (retry)
                *retry = false;
@@ -442,7 +443,10 @@ parser_init_guts(u64 addr, u32 bytes, bool local,
                        rc = NULL;
                        goto cleanup;
                }
-               if (visor_memregion_read(rgn, 0, ctx->data, bytes) < 0) {
+               cnt = visor_memregion_read(rgn, 0, ctx->data, bytes);
+               visor_memregion_destroy(rgn);
+
+               if (cnt < 0) {
                        rc = NULL;
                        goto cleanup;
                }
@@ -469,10 +473,6 @@ parser_init_guts(u64 addr, u32 bytes, bool local,
 
        rc = ctx;
 cleanup:
-       if (rgn) {
-               visor_memregion_destroy(rgn);
-               rgn = NULL;
-       }
        if (rc) {
                controlvm_payload_bytes_buffered += ctx->param_bytes;
        } else {