[PATCH 0/3] Code improvements and argument checks for mmc dev subcommand

[Yao Zi]

This series reduces code duplication by utilizing fallthrough, then adds
extra checks for arguments of mmc dev to ensure they're valid numbers,
preventing unexpected behavior.

The last patch replaces an integer literal returned in do_mmc_dev() by
its corresponding symbolic constant, CMD_RET_FAILURE to improve
readability, no function change is involved.

Yao Zi (3):
  cmd: mmc: Simplify dev subcommand handling
  cmd: mmc: Check whether arguments are valid numbers in dev subcommand
  cmd: mmc: Return symbolic value when part switching fails in mmc dev

 cmd/mmc.c | 55 ++++++++++++++++++++++++++++++++-----------------------
 1 file changed, 32 insertions(+), 23 deletions(-)

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2.52.0