qcow2: Don't shadow return value

When trying to update the refcounts for a snapshot, the return value of
update_refcount on a compressed cluster was pretty much ignored,
cancelling the update on error but returning 0. This is caused by an
inner "ret" variable shadowing the outer one (the latter is used in the
return statement).

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
1 file changed
tree: 94a2325b760f3dd48d9dd1e62db3d6a839475c13
  1. audio/
  2. backends/
  3. block/
  4. bsd-user/
  5. default-configs/
  6. disas/
  7. docs/
  8. fpu/
  9. fsdev/
  10. gdb-xml/
  11. hw/
  12. include/
  13. libcacard/
  14. linux-headers/
  15. linux-user/
  16. net/
  17. pc-bios/
  18. po/
  19. qapi/
  20. qga/
  21. qobject/
  22. qom/
  23. roms/
  24. scripts/
  25. slirp/
  26. stubs/
  27. sysconfigs/
  28. target-alpha/
  29. target-arm/
  30. target-cris/
  31. target-i386/
  32. target-lm32/
  33. target-m68k/
  34. target-microblaze/
  35. target-mips/
  36. target-moxie/
  37. target-openrisc/
  38. target-ppc/
  39. target-s390x/
  40. target-sh4/
  41. target-sparc/
  42. target-unicore32/
  43. target-xtensa/
  44. tcg/
  45. tests/
  46. trace/
  47. ui/
  48. util/
  49. .exrc
  50. .gitignore
  51. .gitmodules
  52. .mailmap
  53. aio-posix.c
  54. aio-win32.c
  55. arch_init.c
  56. async.c
  57. balloon.c
  58. block-migration.c
  59. block.c
  60. blockdev-nbd.c
  61. blockdev.c
  62. blockjob.c
  63. bt-host.c
  64. bt-vhci.c
  65. Changelog
  66. CODING_STYLE
  67. configure
  68. COPYING
  69. COPYING.LIB
  70. coroutine-gthread.c
  71. coroutine-sigaltstack.c
  72. coroutine-ucontext.c
  73. coroutine-win32.c
  74. cpu-exec.c
  75. cpus.c
  76. cputlb.c
  77. device-hotplug.c
  78. device_tree.c
  79. disas.c
  80. dma-helpers.c
  81. dump.c
  82. exec.c
  83. gdbstub.c
  84. HACKING
  85. hmp-commands.hx
  86. hmp.c
  87. hmp.h
  88. iohandler.c
  89. ioport.c
  90. kvm-all.c
  91. kvm-stub.c
  92. LICENSE
  93. main-loop.c
  94. MAINTAINERS
  95. Makefile
  96. Makefile.objs
  97. Makefile.target
  98. memory.c
  99. memory_mapping.c
  100. migration-exec.c
  101. migration-fd.c
  102. migration-rdma.c
  103. migration-tcp.c
  104. migration-unix.c
  105. migration.c
  106. monitor.c
  107. nbd.c
  108. os-posix.c
  109. os-win32.c
  110. page_cache.c
  111. qapi-schema.json
  112. qdev-monitor.c
  113. qdict-test-data.txt
  114. qemu-bridge-helper.c
  115. qemu-char.c
  116. qemu-coroutine-io.c
  117. qemu-coroutine-lock.c
  118. qemu-coroutine-sleep.c
  119. qemu-coroutine.c
  120. qemu-doc.texi
  121. qemu-img-cmds.hx
  122. qemu-img.c
  123. qemu-img.texi
  124. qemu-io-cmds.c
  125. qemu-io.c
  126. qemu-log.c
  127. qemu-nbd.c
  128. qemu-nbd.texi
  129. qemu-options-wrapper.h
  130. qemu-options.h
  131. qemu-options.hx
  132. qemu-seccomp.c
  133. qemu-tech.texi
  134. qemu-timer.c
  135. qemu.nsi
  136. qemu.sasl
  137. qmp-commands.hx
  138. qmp.c
  139. qtest.c
  140. readline.c
  141. README
  142. rules.mak
  143. savevm.c
  144. spice-qemu-char.c
  145. tcg-runtime.c
  146. tci.c
  147. thread-pool.c
  148. thunk.c
  149. tpm.c
  150. trace-events
  151. translate-all.c
  152. translate-all.h
  153. user-exec.c
  154. VERSION
  155. version.rc
  156. vl.c
  157. xbzrle.c
  158. xen-all.c
  159. xen-mapcache.c
  160. xen-stub.c