tree f8ee7779589ae6b59524b58f053b32bc3cdda211
parent b302ef2d3c73d8a07ed2f0679ce35f00b6dcacef
author Theodore Ts'o <tytso@mit.edu> 1370531803 -0400
committer Theodore Ts'o <tytso@mit.edu> 1370531803 -0400

ext4: add sanity check to ext4_get_group_info()

The group number passed to ext4_get_group_info() should be valid, but
let's add an assert to check this before we start creating a pointer
based on that group number and dereferencing it.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>