xfs: fix memory leak in xfs_growfs_check_rtgeom()

Free the "nmp" allocation before returning -EINVAL.

Fixes: dc68c0f ("xfs: fix the zoned RT growfs check for zone alignment")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Carlos Maiolino <cem@kernel.org>

Author: Dan Carpenter

fs/xfs/xfs_rtalloc.c

@@ -1265,7 +1265,7 @@ xfs_growfs_check_rtgeom(
 		uint32_t	rem;
 
 		if (rextsize != 1)
-			return -EINVAL;
+			goto out_inval;
 		div_u64_rem(nmp->m_sb.sb_rblocks, gblocks, &rem);
 		if (rem) {
 			xfs_warn(mp,